PAGE i

          OBSERVED MINIMA TIMINGS
           OF ECLIPSING BINARIES


                 NUMBER 11










                Prepared by:

             Marvin E. Baldwin
              Chairman, AAVSO
             Eclipsing Binary
                 Committee



               Gerard Samolyk
              AAVSO Eclipsing
              Binary Committee



               October 2006

------------------------------------------------------------------
PAGE ii


Funds for publication were provided by
The Harold S. Martin Fund.













ISBN 1-878174-72-X

COPYRIGHT 2006
The American Association of Variable Star Observers
25 Birch Street
Cambridge, MA 02138
USA




All rights reserved.  All commercial use of any part of this book
requires the written permission of the AAVSO. All non-commercial
use by individuals and educators is granted without restriction.

-----------------------------------------------------------------
PAGE iii


TABLE OF CONTENTS



Introduction                                                  v


References                                                   vi


Table 1. Publications Containing Previous AAVSO Minima
for Each Star in this Monograph                             vii


Table 2. Information on O-C Minima and Linear Elements     viii


Table 3. Observers Contributing to this Monograph            ix


Compilation of Times of Minima and O-C Diagrams               1

-----------------------------------------------------------------------
PAGE iv is blank


------------------------------------------------------------------------
PAGE v

                               INTRODUCTION

This compilation contains 514 minima timings of 50 eclipsing binary stars.
It represents a portion of the stars observed by participants in the
AAVSO's eclipsing binary program since 1976, and continues the listing of
minima published in Observed Minima Timings of Eclipsing Binaries Nos. 1
through 10.  Except where otherwise specified, all minima are determined
from visual observations reduced by the authors using a computerized
tracing paper method.  Ron Baldwin and Gerard Samolyk wrote the tracing
paper software specifically for this purpose.

Most CCD observations were reduced by the observers using the method of
Kwee and Van Worden (1957). The standard error is included in each of these
cases.

In instances where fragments of eclipses are observed during different
cycles, the data points are reduced to heliocentric phase and combined into
a single light curve for the tracing paper process.  In these cases, the
listed time of minimum is the eclipse nearest to the midpoint of the
observing interval that corresponds to the calculated phase of minimum
light. A footnote is added to these listings indicating the observing
interval in JD.

With the exception of Z Dra and GU Ori the linear elements in the 1985
General Catalogue of Variable Stars (34) were used to compute the O-C values.
For Z Dra the linear elements from SAC 68 (36) were used. For GU Ori the
linear elements from JAAVSO Vol. 14 No. 1 (24) were used.

All elements used in this publication are listed in Table 2. The number of
observations used for determination of each time of minimum is given under
N. This work is sponsored by the AAVSO, with Marvin Baldwin acting as
program coordinator.

The O-C diagrams accompanying the minima listings represent not only the
minima tabulated here but also all previously published minima associated
with the AAVSO program.  Times of minimum obtained electronically that have
four-place accuracy are circled on the O-C diagrams.  The years spanned by
these diagrams are listed by star in Table 2, with the second column giving
the year of the earliest observation appearing in the diagram and the third
and fourth columns listing the earliest and latest year of the minima
tabulated in this publication.

The material in this monograph may be accessed electronically via the AAVSO
web site home page (http://www.aavso.org).

Observers contributing data used in this publication are listed in Table 3.
Their dedicated efforts are greatly appreciated.

Marvin E. Baldwin                                    Gerard Samolyk
8655 N Co. Rd. 775E                                  9504 W Barnard Ave.
Butlerville, IN 47223                                Greenfield, WI 53228
USA                                                  USA

-------------------------------------------------------------
PAGE vi

                               REFERENCES


 1 Ashbrook, J. 1963, Sky & Telescope, 25,5,277
 2 Ashbrook, J. 1963, Sky & Telescope, 26,3,153
 3 Ashbrook, J. 1964, Sky & Telescope, 27,1,58
 4 Ashbrook, J. 1964, Sky & Telescope, 27, 5, 317.
 5 Ashbrook, J. 1964, Sky & Telescope, 28,10,244
 6 Ashbrook, J. 1965, Sky & Telescope, 29, 4, 254.
 7 Baldwin, M.E. Robinson, L.J. 1965, Inf. Bull. Var. Stars, No. 92
 8 Robinson, L. J. 1965, Inf. Bull. Var. Stars, No. 111.
 9 Robinson, L. J. 1965, Inf. Bull. Var. Stars, No. 114.
10 Robinson, L. J. 1965, Inf. Bull. Var. Stars, No. 119.
11 Robinson, L. J. 1966, Inf. Bull. Var. Stars, No. 129.
12 Robinson, L. J. 1966, Inf. Bull. Var. Stars, No. 154.
13 Robinson, L. J. 1967, Inf. Bull. Var. Stars, No. 180.
14 Robinson, L. J. 1967, Inf. Bull. Var. Stars, No. 221.
15 Robinson, L. J., and Ashbrook, J. 1968, Inf. Bull. Var. Stars, No. 247.
16 Baldwin, M. E. 1973, Inf. Bull. Var. Stars, No. 795.
17 Baldwin, M. E. 1974, J. Amer. Assoc. Var. Star Obs., 3, 60.
18 Baldwin, M. E. 1975, J. Amer. Assoc. Var. Star Obs., 4, 86.
19 Baldwin, M. E. 1976, J. Amer. Assoc. Var. Star Obs., 5, 29.
20 Baldwin, M. E. 1976, J. Amer. Assoc. Var. Star Obs., 5, 84.
21 Baldwin, M. E. 1977, J. Amer. Assoc. Var. Star Obs., 6, 24.
22 Baldwin, M.E. Samolyk, G. Wedemayer G.J. 1977, J. Amer. Assoc.
     Var. Star Obs., 6, 9.
23 Baldwin, M. E. 1978, J. Amer. Assoc. Var. Star Obs., 7, 28.
24 Samolyk, G. 1985, J. Amer. Assoc. Var. Star Obs., 14,1,12
25 Baldwin, M. E., and Samolyk, G. 1993, Observed Minima Timings of
     Eclipsing Binaries No. 1, AAVSO, Cambridge, MA.
26 Baldwin, M. E., and Samolyk, G. 1995, Observed Minima Timings of
     Eclipsing Binaries No. 2, AAVSO, Cambridge, MA.
27 Baldwin, M. E., and Samolyk, G. 1996, Observed Minima Timings of
     Eclipsing Binaries No. 3, AAVSO, Cambridge, MA.
28 Baldwin, M. E., and Samolyk, G. 1997, Observed Minima Timings of
     Eclipsing Binaries No. 4, AAVSO, Cambridge, MA.
29 Baldwin, M. E., and Samolyk, G. 1999, Observed Minima Timings of
     Eclipsing Binaries No. 5, AAVSO, Cambridge, MA.
30 Baldwin, M. E., and Samolyk, G. 2000, Observed Minima Timings of
     Eclipsing Binaries No. 6, AAVSO, Cambridge, MA.
31 Baldwin, M. E., and Samolyk, G. 2002, Observed Minima Timings of
     Eclipsing Binaries No. 7, AAVSO, Cambridge, MA.
32 Baldwin, M. E., and Samolyk, G. 2003, Observed Minima Timings of
     Eclipsing Binaries No. 8, AAVSO, Cambridge, MA.
33 Baldwin, M. E., and Samolyk, G. 2004, Observed Minima Timings of
     Eclipsing Binaries No. 9, AAVSO, Cambridge, MA.
34 Kholopov, P. N., et al. 1985, General Catalogue of Variable Stars,
     Fourth Edition, Moscow.
35 Kwee K. K., and Van Worden, H. 1957, Bull. Astron. Inst. Netherlands,
     12, 327.
36 Kurpinskw-Winiarska, M., et. al. 1996, SAC68 (Rocznik Astron.
     Obserwat. Krakowskiego, Suppl. Ann. Cracoviense No. 68).

-------------------------------------------------------------------
PAGE vii

                                    TABLE 1
[note that ascii version of table is wider than 80 characters]

             1  2  3  4  5  6  7  8  9  10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
WZ      AND                                         X     X     X  X     X     X     X           X        X
CZ      AQR                                                                                X
OO      AQL     X  X     X  X     X  X  X     X  X     X  X     X  X  X  X     X     X     X     X  X  X     X
V342    AQL                    X  X           X  X        X        X  X  X     X           X
V346    AQL                       X  X  X     X  X     X  X     X  X  X  X     X     X        X     X     X
SV      CAM              X  X     X  X  X  X  X  X  X  X  X     X  X  X  X     X     X           X     X
TZ      CMA
UU      CMA                                                                 X              X
AK      CMI                                         X                                         X
RZ      CAS     X  X  X     X     X  X  X  X  X  X  X  X  X     X  X  X  X     X     X  X     X  X  X  X  X  X
AB      CAS                             X  X  X  X  X  X  X     X  X  X  X     X     X        X     X     X
IR      CAS                                                                    X     X        X     X
PV      CAS                                                                                   X
DK      CEP                                                                                      X
EG      CEP                                   X  X        X     X  X  X  X     X     X        X  X     X     X
W       CRV                                                        X     X     X     X        X        X
RV      CRV                                                                    X              X
WW      CYG                                                     X              X        X
BR      CYG                                               X              X           X        X  X        X
CG      CYG                                                                          X           X        X
V387    CYG                                                                          X           X     X
V477    CYG                                   X  X     X  X     X  X  X        X        X           X
TT      DEL                                               X           X  X     X           X
TY      DEL                             X              X  X     X        X     X     X           X     X
FZ      DEL                                               X     X  X  X  X     X     X        X     X     X
Z       DRA                       X  X     X  X     X  X  X     X  X  X  X     X     X        X     X     X
YY      ERI                                               X     X  X  X  X     X     X     X  X  X  X  X     X
Z       HER                       X
SZ      HER  X  X  X     X  X     X  X  X     X  X  X  X     X  X  X  X  X     X     X        X  X     X     X
CC      HER                                                                                X
VX      LAC                                   X  X     X     X  X  X  X  X     X     X           X     X
Y       LEO     X        X                 X  X     X        X  X  X  X  X     X     X           X
SS      LIB                       X           X                    X                             X
EW      LYR                                                  X  X  X  X  X     X     X           X
RW      MON                                                  X     X                    X           X
FZ      ORI
GU      ORI                                                                       X              X        X
U       PEG                                                  X  X  X  X  X     X     X        X        X
DI      PEG                                                                             X                 X
IU      PER
RV      PSC                                                                                      X
V505    SGR                 X     X  X           X     X     X                 X        X           X
RW      TAU                             X  X        X  X     X     X  X        X     X              X
HU      TAU                 X     X           X  X  X        X        X  X     X        X           X
V       TRI                                                                    X     X        X     X     X
X       TRI                 X           X  X  X  X  X  X     X  X  X  X  X     X     X     X     X     X     X
W       UMA                                   X     X        X  X  X  X  X     X     X        X     X     X  X
XZ      UMA                                         X        X     X  X  X     X     X              X     X
RU      UMI                                                     X              X     X              X     X
VV      VIR                                                                                X


This table identifies publications in which previous AAVSO minima for each
star have been published. The numbers across the top of the table correspond
to those given at the beginning of each entry in the References.

-------------------------------------------------------------------------
PAGE viii

TABLE 2

        Earliest        Earliest        Latest  Epoch           Period
        Minimum         Listing         Listing 2400000 +       (Days)

          WZ    And     1966    2002    2005    40872.290       0.6956576
          CZ    Aqr     1976    1999    2005    43371.469       0.8627540
          OO    Aql     1960    2004    2006    38613.2222      0.50678848
        V342    Aql     1965    1997    2005    39318.581       3.390882
        V346    Aql     1965    2003    2005    41918.384       1.106363
          SV    Cam     1964    2002    2005    42594.61518     0.59306995
          TZ    CMa     1976    1976    2005    27124.871       1.911446
          UU    CMa     1976    1996    2005    44598.412       2.1664842
          AK    CMi     1967    1998    2006    43101.672       0.5658975
          RZ    Cas     1961    2004    2006    43200.3063      1.195247
          AB    Cas     1965    2003    2006    42714.4627      1.3668738
          IR    Cas     1975    2001    2006    42364.054       0.6806854
          PV    Cas     1976    1998    2006    40227.4044      1.75046986
          DK    Cep     1976    2000    2006    33590.5630      0.9859064
          EG    Cep     1966    2004    2006    42594.3825      0.54462183
           W    Crv     1971    2003    2006    39647.766       0.38808083
          RV    Crv     1975    2001    2005    41029.384       0.7472521
          WW    Cyg     1970    1995    2005    40377.886       3.3177690
          BR    Cyg     1968    2003    2005    41539.4654      1.33256415
          CG    Cyg     1976    2003    2005    39425.1221      0.63114100
        V387    Cyg     1976    2002    2005    27985.461       0.6405964
        V477    Cyg     1966    2000    2005    44189.2639      2.3469906
          TT    Del     1968    1996    2005    45232.419       2.871119
          TY    Del     1965    2002    2005    42959.4450      1.19112689
          FZ    Del     1968    2003    2006    31324.329       0.7832126
           Z    Dra     1965    2002    2006    43499.736       1.3574560
          YY    Eri     1968    2004    2006    41581.624       0.32149415
           Z    Her     1965    1988    2006    13086.3345      3.9928077
          SZ    Her     1959    2004    2005    41864.30517     0.81809828
          CC    Her     1976    1997    2006    39668.342       1.7340058
          VX    Lac     1966    2002    2005    45258.466       1.0744942
           Y    Leo     1963    1999    2006    45436.451       1.6861020
          SS    Lib     1965    2000    2006    41155.660       1.4379983
          EW    Lyr     1968    1999    2006    26499.697       1.948723
          RW    Mon     1968    2002    2005    33680.4481      1.90609412
          FZ    Ori     2000    2000    2006    44024.4583      0.3999866
          GU    Ori     1976    2003    2006    43069.903       0.470681
           U    Peg     1968    2002    2005    36511.66823     0.374781439
          DI    Peg     1976    2003    2005    45196.488       0.7118168
          IU    Per     1977    1977    2006    45611.436       0.8570251
          RV    Psc     1977    2000    2006    24381.480       0.55399145
        V505    Sgr     1964    2000    2004    44461.5907      1.18287156
          RW    Tau     1965    2001    2006    45684.204       2.7688356
          HU    Tau     1964    2000    2005    41275.3219      2.0562997
           V    Tri     1975    2003    2005    24474.305       0.5852057
           X    Tri     1960    2003    2006    42502.721       0.9715352
           W    UMa     1966    2004    2006    45765.7385      0.33363749
          XZ    UMa     1967    2003    2005    46168.426       1.22232
          RU    UMi     1972    2003    2006    41596.3365      0.52492618
          VV    Vir     1977    1997    2006    31221.218       0.44613577


The O-C diagrams for each star contain the minima spanning the years in
columns two and four. The listing of new minima spans the years in columns
three and four. The fifth and sixth columns contain the linear elements
used to calculate the O-C values in this publication. All of these
elements are from the General Catalogue of Variable Stars (Kholopov
et al. 1985) except for Z Dra and GU Ori (see the introduction).

-------------------------------------------------------------------------
PAGE ix

                                TABLE 3

        M. Baldwin           13         C. Hesseltine (CCD)   8
        D. Beard              5         R. Hill              25
        R. Berg               1         J. A. Howell (CCD)   10
        J. Bialozynski (CCD) 13         S. Jamieson (CCD)     2
        S. Brady (CCD)        3         V. Jani               1
        N. Butterworth (CCD)  4         B. Manske (CCD)       2
        G. Chaple            24         I. Megson             2
        J. Coloma (CCD)       2         C. Norris (CCD)       1
        S. Cook (CCD)        46         R. Papini (CCD)       4
        M. Csukas             1         R. Poklar (CCD)       9
        S. Dvorak (CCD)      31         G. Samolyk           63
        A. Filho              1         G. Samolyk (CCD)    113
        S. Foglia             3         G. Sarty              1
        H. Gerner             1         T. Shoup (CCD)        1
        H. Gerner (CCD)       3         M. Simonsen           2
        P. Guilbault          1         C. Stephan           43
        T. Hager              1         J. Virtanen           1
        R. Hays              32         G. Wedemayer          2
        C. Haza (CCD)         2         D. Williams          37

        36 Observers                                        514


This table lists the observers and the number of minima  contributed by each.
CCD stands for Charge-Coupled Device.

-------------------------------------------------------------------------

WZ AND
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52585.801     16838      0.028    19   R. Hill
52963.5442    17381      0.0295   60   G. Samolyk (CCD)   0.0003
52981.6312    17407      0.0294   75   S. Dvorak (CCD)    0.0001
53301.638     17867      0.034    25   S. Cook (CCD)
53331.5508    17910      0.0332   32   S. Dvorak (CCD)    0.0002
53591.7294    18284      0.0358   73   J. Bialozynski(CCD)0.0002
53621.642     18327      0.035    17   S. Cook (CCD)
53686.338     18420      0.035    15   V. Jani
53694.688     18432      0.037    21   C. Stephan
53724.6016    18475      0.0374  106   G. Samolyk (CCD)   0.0001

------------------------------------------------------

CZ AQR
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51454.598      9369     -0.013    14   G. Samolyk
51849.735      9827     -0.018    16   R. Hill
52189.6557    10221     -0.0219   66   G. Samolyk (CCD)   0.0001
52262.5606    10305.5   -0.0197   51   S. Dvorak (CCD)    0.0008
52931.619     11081     -0.027    14   D. Williams
52963.5403    11118     -0.0277   44   G. Samolyk (CCD)   0.0002
53238.7568    11437     -0.0297   41   G. Samolyk (CCD)   0.0001
53314.6791    11525     -0.0297   48   G. Samolyk (CCD)   0.0002
53634.7595    11896     -0.0311   60   J. Bialozynski(CCD)0.0001
53653.742     11918     -0.029    18   C. Stephan
53673.5830    11941     -0.0315   80   G. Samolyk (CCD)   0.0002

------------------------------------------------------

OO AQL
   JD(min)                                                STANDARD
     HEL.     CYCLE     O-C      N     OBSERVER           ERROR
 2400000 +
53106.8942    28599      0.0283   60   S. Dvorak (CCD)    0.0001
53176.821     28737      0.018    16   D. Williams
53239.670     28861      0.025    13   R. Hays
53239.681     28861      0.036    10   D. Williams
53258.4244    28898      0.0287   44   R. Papini (CCD)    0.0001
53258.6779    28898.5    0.0288   55   R. Poklar (CCD)    0.0001
53274.641     28930      0.028    16   D. Williams
53292.638     28965.5    0.034    13   C. Stephan
53565.792     29504.5    0.029    17   C. Stephan
53574.6631    29522      0.0314   52   G. Samolyk (CCD)   0.0001
53581.762     29536      0.035    15   C. Stephan
53585.814     29544      0.033    17   C. Stephan
53616.726     29605      0.031    14   D. Williams
53641.5597    29654      0.0319   68   G. Samolyk (CCD)   0.0001
53643.580     29658      0.025    14   R. Hays
54000.3714    30362      0.0374   65   R. Papini (CCD)    0.0002

------------------------------------------------------

V342 AQL
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
50627.023 1)   3335     -0.149    29   D. Beard
50644.010 2)   3340     -0.117    28   D. Beard
50667.739      3347     -0.124    24   D. Beard
50684.704      3352     -0.113    29   D. Beard
50718.600      3362     -0.126    25   D. Beard
51447.6153     3577     -0.1506        J. A. Howell (CCD) 0.0017
52125.779      3777     -0.163    29   G. Samolyk
52810.7194     3979     -0.1811   59   G. Samolyk (CCD)   0.0001
53539.7550     4194     -0.1851  125   G. Samolyk (CCD)   0.0002
53621.1314 3)  4218     -0.1899  150   G. Samolyk (CCD)   0.0004

1) Observations combined from 50623 to 50633
2) Observations combined from 50640 to 50650
3) Observations combined from 53617 to 53624

----------------------------------------------------------------

V346 AQL
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52822.686      9856     -0.012    12   R. Hays
52833.749      9866     -0.012    13   D. Williams
53239.7867    10233     -0.0099   60   G. Samolyk (CCD)   0.0002
53258.5941    10250     -0.0106   43   G. Samolyk (CCD)   0.0004
53259.697     10251     -0.014    14   D. Williams
53279.618     10269     -0.008    26   S. Cook (CCD)
53561.738     10524     -0.010    14   D. Williams
53581.6521    10542     -0.0106   70   G. Samolyk (CCD)   0.0001
53643.605     10598     -0.014    15   R. Hays

------------------------------------------------------

SV CAM
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52547.562 :   16782      0.047    16   G. Chaple
52586.699     16848      0.041    18   C. Stephan
52723.707     17079      0.050    17   C. Stephan
52930.685     17428      0.047    18   C. Stephan
53003.639     17551      0.053    18   G. Samolyk
53306.694     18062      0.049    17   S. Cook (CCD)
53334.570     18109      0.051    22   S. Cook (CCD)
53373.704     18175      0.042    16   C. Stephan
53443.694     18293      0.050    16   C. Stephan
53481.647     18357      0.047    25   S. Cook (CCD)

------------------------------------------------------

TZ CMA
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
43096.844      8356     -0.070     8   G. Wedemayer
43165.638      8392     -0.088     9   G. Samolyk
43165.662      8392     -0.064    10   G. Wedemayer
43876.710      8764     -0.074    10   G. Samolyk
44608.763      9147     -0.105    10   G. Samolyk
44654.624      9171     -0.118    12   G. Samolyk
45021.623      9363     -0.117    15   G. Samolyk
45298.818      9508     -0.082    16   G. Samolyk
45732.665      9735     -0.133    10   G. Samolyk
45753.699      9746     -0.125    22   G. Samolyk
46445.673     10108     -0.094    16   G. Samolyk
46835.599     10312     -0.103    18   G. Samolyk
53049.6222    13563     -0.1909   48   G. Samolyk (CCD)   0.0003
53393.6791    13743     -0.1943   58   G. Samolyk (CCD)   0.0005

------------------------------------------------------

UU CMA
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
50107.703      2543     -0.078    18   M. Baldwin
50122.845 :    2550     -0.102    13   R. Hill
50159.697      2567     -0.080    11   R. Hill
50523.653      2735     -0.093    16   G. Samolyk
51264.5838     3077     -0.1001   21   G. Samolyk (CCD)   0.0001
52683.6267     3732     -0.1043   73   G. Samolyk (CCD)   0.0003
52696.6252     3738     -0.1047   43   S. Jamieson (CCD)  0.0002
53413.7302     4069     -0.1060   71   G. Samolyk (CCD)   0.0001

------------------------------------------------------

AK CMI
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
50873.690     13734     -0.018    21   R. Hill
51488.833     14821     -0.006    18   G. Samolyk
51611.627     15038     -0.012    17   M. Baldwin
51989.6430    15706     -0.0151   49   G. Samolyk (CCD)   0.0001
52316.740     16284     -0.007    25   G. Samolyk
52986.7539    17468     -0.0156   60   C. Hesseltine(CCD) 0.0001
53763.7275    18841     -0.0193   90   R. Poklar (CCD)    0.0002
53763.7282    18841     -0.0186   88   G. Samolyk (CCD)   0.0002

------------------------------------------------------

RZ CAS
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
53254.780      8412      0.056    26   C. Stephan
53259.560      8416      0.055    20   G. Chaple
53314.546      8462      0.060    16   G. Samolyk
53357.567      8498      0.052    24   G. Chaple
53406.571      8539      0.051    21   G. Chaple
53406.583      8539      0.063    16   G. Samolyk
53621.725      8719      0.060    25   S. Cook (CCD)
53645.630      8739      0.060    23   G. Samolyk
53682.6791     8770      0.0566   60   J. Bialozynski(CCD)0.0005
53792.640      8862      0.055    17   H. Gerner
53792.642      8862      0.057    22   G. Samolyk

------------------------------------------------------

AB CAS
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52930.551      7474      0.074    12   M. Baldwin
52986.5932     7515      0.0739   37   G. Samolyk (CCD)   0.0001
53001.631      7526      0.076    14   D. Williams
53284.575      7733      0.077    28   G. Chaple
53288.676      7736      0.078    14   D. Williams
53288.680      7736      0.082    11   C. Stephan
53299.610      7744      0.077    24   S. Cook (CCD)
53407.590      7823      0.074    25   G. Chaple
53616.729      7976      0.081    14   D. Williams
53623.567      7981      0.085    16   G. Chaple
53627.664      7984      0.081    32   S. Cook (CCD)
53638.596      7992      0.078    27   G. Chaple
53653.633      8003      0.079    16   R. Hays
53709.676      8044      0.080    15   R. Hays
53761.615      8082      0.078    16   R. Hays
53787.590      8101      0.083    25   G. Chaple

------------------------------------------------------

IR CAS
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52168.660     14404      0.013    11   G. Samolyk
52511.725     14908      0.013    18   M. Simonsen
52603.6184    15043      0.0139   47   S. Dvorak (CCD)    0.0001
53176.7543    15885      0.0127   30   G. Samolyk (CCD)   0.0002
53274.7733    16029      0.0130   40   G. Samolyk (CCD)   0.0001
53315.6179    16089      0.0165   27   S. Brady (CCD)     0.0006
53329.5719    16109.5    0.0164   38   S. Brady (CCD)     0.0005
53345.5658    16133      0.0142   27   S. Brady (CCD)     0.0005
53903.7244    16953      0.0108   97   G. Samolyk (CCD)   0.0002

------------------------------------------------------

PV CAS
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51141.560      6235     -0.024    16   G. Samolyk
51162.563      6247     -0.027    20   G. Samolyk
52186.5840     6832     -0.0305   47   S. Dvorak (CCD)    0.0002
52235.5971     6860     -0.0305   76   S. Dvorak (CCD)    0.0002
52951.5389     7269     -0.0309   64   G. Samolyk (CCD)   0.0001
52986.5467     7289     -0.0325   59   J. Bialozynski(CCD)0.0004
53035.5602     7317     -0.0322   52   J. Bialozynski(CCD)0.0002
53266.6207     7449     -0.0337   41   G. Samolyk (CCD)   0.0004
53581.7064     7629     -0.0326  110   C. Hesseltine(CCD) 0.0001
53910.7931     7817     -0.0342   61   G. Samolyk (CCD)   0.0002

------------------------------------------------------

DK CEP
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51698.744     18367      0.038    22   G. Samolyk
51775.648     18445      0.041    10   G. Samolyk
51777.618     18447      0.040    13   G. Samolyk
51842.682     18513      0.034    11   R. Hill
52468.7340    19148      0.0353   37   G. Samolyk (CCD)   0.0002
52618.5919    19300      0.0354   30   G. Samolyk (CCD)   0.0002
52618.5921    19300      0.0356   42   S. Jamieson (CCD)  0.0002
52899.5755    19585      0.0357   49   G. Samolyk (CCD)   0.0002
53588.7213    20284      0.0329   83   G. Samolyk (CCD)   0.0001
53931.8155    20632      0.0317   50   G. Samolyk (CCD)   0.0001

------------------------------------------------------

EG CEP
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
53289.674     19638      0.008    18   C. Stephan
53307.650     19671      0.011    26   S. Cook (CCD)
53319.631     19693      0.011    20   S. Cook (CCD)
53553.822     20123      0.014    12   D. Williams
53558.7233    20132      0.0141   86   G. Samolyk (CCD)   0.0001
53565.798     20145      0.009    20   C. Stephan
53570.703     20154      0.012    30   S. Cook (CCD)
53861.5342    20688      0.0153        J. Coloma (CCD)    0.0001

------------------------------------------------------

W CRV
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52627.9188    33447      0.0133   30   S. Dvorak (CCD)    0.0001
52713.6862    33668      0.0148   33   G. Samolyk (CCD)   0.0003
52734.645     33722      0.017    14   C. Stephan
52762.9716    33795      0.0140  165   N. Butterworth(CCD)0.0001
52780.6298    33840.5    0.0145   20   R. Poklar (CCD)    0.0004
53119.6186    34714      0.0147   49   G. Samolyk (CCD)   0.0002
53406.8000    35454      0.0163   40   S. Dvorak (CCD)    0.0001
53435.7141    35528.5    0.0183   75   G. Samolyk (CCD)   0.0003
53494.7003    35680.5    0.0162   50   J. Bialozynski(CCD)0.0006
53834.6582    36556.5    0.0153   62   G. Samolyk (CCD)   0.0002

------------------------------------------------------

RV CRV
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52029.6317    14721     -0.0505   46   G. Samolyk (CCD)   0.0006
52048.6898    14746.5   -0.0473   59   G. Samolyk (CCD)   0.0011
52370.7491    15177.5   -0.0536   79   G. Samolyk (CCD)   0.0010
52734.660     15664.5   -0.055    18   C. Stephan
52780.6206    15726     -0.0499   39   G. Samolyk (CCD)   0.0007
52796.679 :   15747.5   -0.057         G. Samolyk (CCD)   0.005
52817.9834    15776     -0.0497  141   N. Butterworth(CCD)0.0002
53479.673     16661.5   -0.052    28   S. Cook (CCD)
53513.672     16707     -0.053    15   S. Cook (CCD)

------------------------------------------------------

WW CYG
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
49929.758      2879      0.015    14   M. Baldwin
49992.789      2898      0.008    17   R. Hill
50284.759      2986      0.015    17   G. Samolyk
50984.819 :    3197      0.026    19   R. Hill
51097.621      3231      0.023    20   D. Williams
51097.628      3231      0.030    24   G. Samolyk
51369.6802     3313      0.0255        J. A. Howell (CCD) 0.0008
52507.698      3656      0.049    17   M. Simonsen
53270.789      3886      0.053    26   R. Hill
53645.7052     3999      0.0485   66   G. Samolyk (CCD)   0.0001

------------------------------------------------------

BR CYG
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52883.580      8513     -0.004    13   C. Stephan
52899.5754     8525      0.0006   46   G. Samolyk (CCD)   0.0002
52931.5563     8549      0.0000   18   B. Manske (CCD)    0.0009
52975.533      8582      0.002    12   R. Hays
53264.695      8799     -0.002    16   S. Cook (CCD)
53284.685      8814     -0.001    14   R. Hays
53288.6835     8817      0.0000   51   G. Samolyk (CCD)   0.0001
53288.684      8817      0.000    10   C. Stephan
53340.652      8856     -0.002    19   S. Cook (CCD)
53589.8430     9043      0.0000   67   G. Samolyk (CCD)   0.0001

------------------------------------------------------

CG CYG
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52833.761     21245      0.048    11   D. Williams
52883.630     21324      0.057    14   C. Stephan
52931.5884    21400      0.0489   22   S. Dvorak (CCD)    0.0001
52931.592     21400      0.052    13   D. Williams
52986.4968    21487      0.0480   58   S. Dvorak (CCD)    0.0001
53232.6435    21877      0.0497   44   H. Gerner (CCD)    0.0003
53275.562     21945      0.051    14   G. Chaple
53302.700     21988      0.050    22   S. Cook (CCD)
53321.636     22018      0.051    26   S. Cook (CCD)
53335.5224    22040      0.0527  104   S. Dvorak (CCD)    0.0001
53581.6689    22430      0.0542   82   G. Samolyk (CCD)   0.0001
53591.768     22446      0.055    13   C. Stephan
53624.5844    22498      0.0521   38   H. Gerner (CCD)    0.0002

------------------------------------------------------

V387 CYG
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52469.7080    38221      0.0120  112   C. Hesseltine(CCD) 0.0001
52562.5943    38366      0.0118   61   G. Samolyk (CCD)   0.0003
53175.6467    39323      0.0135   32   G. Samolyk (CCD)   0.0004
53253.800     39445      0.014    29   C. Stephan
53257.6423    39451      0.0127   26   S. Cook (CCD)
53289.672     39501      0.013    15   C. Stephan
53341.5615    39582      0.0138   51   G. Samolyk (CCD)   0.0001
53348.608     39593      0.014    23   S. Cook (CCD)
53565.773     39932      0.017    15   C. Stephan

------------------------------------------------------

V477 CYG
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51734.833      3215     -0.006    12   D. Williams
51814.6242     3249     -0.0122        J. A. Howell (CCD) 0.0001
51814.626      3249     -0.010     9   R. Berg
52525.7596     3552     -0.0149   66   G. Samolyk (CCD)   0.0002
52950.5638     3733     -0.0160   66   G. Samolyk (CCD)   0.0001
53255.6708     3863     -0.0178   75   J. Bialozynski(CCD)0.0004
53269.753      3869     -0.018    19   S. Cook (CCD)
53302.610      3883     -0.018    18   S. Cook (CCD)
53553.7383     3990     -0.0181   71   J. Bialozynski(CCD)0.0003

------------------------------------------------------

TT DEL
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
50305.643      1767     -0.043    13   M. Baldwin
50661.655      1891     -0.050    10   M. Baldwin
51132.528      2055     -0.041     9   M. Baldwin
51370.813      2138     -0.058    10   D. Williams
51419.621      2155     -0.059         J. A. Howell (CCD) 0.0031
52556.584      2551     -0.060    18   C. Stephan
52881.0034     2664     -0.0766        N. Butterworth(CCD)0.0003
52909.712      2674     -0.079    14   R. Hill
53265.732      2798     -0.078    14   S. Cook (CCD)
53268.605      2799     -0.076    11   D. Williams
53644.7278     2930     -0.0699  109   C. Hesseltine(CCD) 0.0002

------------------------------------------------------

TY DEL
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52557.5896     8058      0.0441   56   G. Samolyk (CCD)   0.0002
52908.9715     8353      0.0436        N. Butterworth(CCD)0.0001
52931.604      8372      0.045    12   D. Williams
53249.648      8639      0.058    13   R. Hays
53262.733      8650      0.040    23   R. Hill
53274.653      8660      0.049    14   D. Williams
53286.563      8670      0.048    22   G. Chaple
53311.579      8691      0.050    20   G. Chaple
53617.6938     8948      0.0454   44   G. Samolyk (CCD)   0.0001
53617.697      8948      0.049    16   D. Williams
53623.6486     8953      0.0446   34   S. Cook (CCD)
53685.595      9005      0.052    13   R. Hays

------------------------------------------------------

FZ DEL
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52931.554     27588     -0.044    10   D. Williams
52931.556     27588     -0.042    10   M. Baldwin
53168.8700    27891     -0.0416   66   S. Dvorak (CCD)    0.0001
53246.4074    27990     -0.0423   60   R. Papini (CCD)    0.0006
53256.5893    28003     -0.0421   34   G. Samolyk (CCD)   0.0002
53256.594     28003     -0.037    11   R. Hays
53259.726     28007     -0.038    14   D. Williams
53263.6384    28012     -0.0420   38   S. Cook (CCD)
53314.5480    28077     -0.0412   44   G. Samolyk (CCD)   0.0001
53617.656     28464     -0.036    11   D. Williams
53617.656     28464     -0.036    14   R. Hays
53621.573     28469     -0.036    12   G. Chaple
53624.7029    28473     -0.0385   62   H. Gerner (CCD)    0.0001
53653.685     28510     -0.035    19   C. Stephan
53931.7226    28865     -0.0381   48   G. Samolyk (CCD)   0.0001

------------------------------------------------------

Z DRA
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52556.537      1998     -0.021    18   G. Chaple
52758.793      2147     -0.022    23   R. Hill
52792.728      2172     -0.023    12   R. Hill
52796.800      2175     -0.024    17   R. Hill
53050.6368     2362     -0.0273   52   G. Samolyk (CCD)   0.0001
53149.731      2435     -0.026    20   R. Hill
53274.6128     2527     -0.0282   65   G. Samolyk (CCD)   0.0001
53445.6484     2653     -0.0295   75   J. Bialozynski(CCD)0.0001
53540.671      2723     -0.027    14   D. Williams
53722.5643     2857     -0.0305   65   G. Samolyk (CCD)   0.0001
53844.7331     2947     -0.0309   93   R. Poklar (CCD)    0.0001

------------------------------------------------------

YY ERI
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
53288.7832    36414.5    0.1105   39   G. Samolyk (CCD)   0.0003
53365.6212    36653.5    0.1114   25   C. Norris (CCD)    0.0015
53366.5858    36656.5    0.1115  110   S. Dvorak (CCD)    0.0001
53373.667     36678.5    0.120    15   C. Stephan
53391.666     36734.5    0.115    16   C. Stephan
53414.649     36806      0.111    32   S. Cook (CCD)
53725.6993    37773.5    0.1160   46   R. Poklar (CCD)    0.0002
53758.655     37876      0.119    16   C. Stephan
53761.5449    37885      0.1150   54   G. Samolyk (CCD)   0.0004
53776.665     37932      0.125    16   C. Stephan

----------------------------------------------------------------

Z HER
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
47332.603  4)  8577     -0.043    40   G. Samolyk
48486.524      8866     -0.044     9   A. Filho
49480.748      9115     -0.029    25   G. Samolyk
49500.702      9120     -0.039    16   G. Samolyk
50578.750      9390     -0.049    25   G. Samolyk
50634.647  5)  9404     -0.051    13   S. Cook (CCD)
51732.6854 6)  9679     -0.0348  120   G. Samolyk (CCD)   0.0007
52810.7401     9949     -0.0382   52   G. Samolyk (CCD)   0.0008
53884.8099    10218     -0.0337  110   G. Samolyk (CCD)   0.0003
53932.7240    10230     -0.0333   81   G. Samolyk (CCD)   0.0002

4) Observations combined From 47276 to 47391
5) Observations combined from 50602 to 50666
6) Observations combined from 51720 to 51748

----------------------------------------------------------------

SZ HER
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
53109.858     13746     -0.026    13   R. Hays
53200.671     13857     -0.022    13   R. Hays
53259.577     13929     -0.019    20   G. Chaple
53263.670     13934     -0.017    10   R. Hill
53268.577     13940     -0.018    13   D. Williams
53272.6644    13945     -0.0213   49   S. Cook (CCD)
53528.730     14258     -0.020    13   R. Hays
53560.639     14297     -0.017    11   D. Williams
53673.538     14435     -0.016    11   R. Hays

----------------------------------------------------------------

CC HER
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
50578.789      6292      0.083    21   G. Samolyk
50963.745      6514      0.089    22   G. Samolyk
52059.6706     7146      0.1232   68   G. Samolyk (CCD)   0.0001
52104.754      7172      0.122    17   G. Samolyk
52529.5934     7417      0.1304   39   G. Samolyk (CCD)   0.0001
52874.6654     7616      0.1352   88   C. Hesseltine(CCD) 0.0001
53545.7433     8003      0.1529   65   J. Bialozynski(CCD)0.0001
53552.679      8007      0.153    28   S. Cook (CCD)
53798.9162     8149      0.1609   65   G. Samolyk (CCD)   0.0001

----------------------------------------------------------------

VX LAC
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52529.6117     6767      0.0434   55   G. Samolyk (CCD)   0.0003
52975.5307     7182      0.0474   32   G. Samolyk (CCD)   0.0002
53238.782      7427      0.048    14   R. Hays
53281.7641     7467      0.0499   56   G. Samolyk (CCD)   0.0001
53351.606      7532      0.050    32   S. Cook (CCD)
53640.651      7801      0.056    13   R. Hays
53682.553      7840      0.052    13   R. Hays
53711.5656     7867      0.0537   71   G. Samolyk (CCD)   0.0002
53725.539      7880      0.059    13   R. Hays

----------------------------------------------------------------

Y LEO
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51231.595      3437      0.011    11   M. Baldwin
51273.749      3462      0.013    16   M. Baldwin
51951.566      3864      0.017    14   G. Samolyk
51988.660      3886      0.017    16   R. Hill
51993.719      3889      0.017    14   D. Williams
53335.8450     4685      0.0061  175   S. Dvorak (CCD)    0.0001
53367.8805     4704      0.0057   92   S. Dvorak (CCD)    0.0001
53792.7707     4956     -0.0018  116   G. Samolyk (CCD)   0.0001

----------------------------------------------------------------

SS LIB
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51720.6931     7347      0.0596        J. A. Howell (CCD) 0.0003
52042.808      7571      0.063    18   D. Williams
52042.8089     7571      0.0638  112   G. Samolyk (CCD)   0.0003
52045.6844     7573      0.0633        J. A. Howell (CCD) 0.0004
52426.7623     7838      0.0716   94   G. Samolyk (CCD)   0.0002
52810.7147     8105      0.0785   59   G. Samolyk (CCD)   0.0004
53529.730      8605      0.095    12   S. Cook (CCD)
53890.676      8856      0.1031  108   G. Samolyk (CCD)   0.0002

----------------------------------------------------------------

EW LYR
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51363.6975    12759      0.2437        J. A. Howell (CCD) 0.0009
51439.697     12798      0.243    16   M. Baldwin
51706.676     12935      0.247    24   P. Guilbault
51706.677     12935      0.248    24   T. Hager
51784.6192    12975      0.2413        J. A. Howell (CCD) 0.0002
52045.743     13109      0.236    12   R. Hill
53148.722     13675      0.238    17   R. Hill
53263.690     13734      0.231    11   R. Hill
53267.595     13736      0.239    12   D. Williams
53567.698     13890      0.239    22   S. Cook (CCD)
53910.6686    14066      0.2339   70   G. Samolyk (CCD)   0.0001

----------------------------------------------------------------

RW MON
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52287.696      9762     -0.043    21   G. Samolyk
52310.570      9774     -0.042    18   C. Stephan
52310.571      9774     -0.041    15   R. Hays
52310.572 :    9774     -0.040    11   M. Baldwin
52329.635      9784     -0.038    11   D. Williams
52371.5629     9806     -0.0441   42   S. Dvorak (CCD)    0.0001
52695.598      9976     -0.045    16   R. Hays
53061.5638    10168     -0.0493   56   G. Samolyk (CCD)   0.0001
53101.596     10189     -0.045    12   R. Hays
53406.569     10349     -0.047    16   R. Hays
53465.653     10380     -0.052    13   R. Hays

----------------------------------------------------------------

FZ ORI
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51554.550     18826     -0.056    12   S. Cook (CCD)
52220.7196    20491.5   -0.0641   66   S. Dvorak (CCD)    0.0002
52291.5176    20668.5   -0.0637   33   S. Dvorak (CCD)    0.0002
52299.5172    20688.5   -0.0639   29   S. Dvorak (CCD)    0.0003
52575.9068    21379.5   -0.0650   17   S. Dvorak (CCD)    0.0006
52965.8942    22354.5   -0.0645   23   S. Dvorak (CCD)    0.0005
53363.6802    23349     -0.0652   53   G. Samolyk (CCD)   0.0004
53381.681     23394     -0.064    10   S. Cook (CCD)
53745.6679    24304     -0.0647   73   R. Poklar (CCD)    0.0002

----------------------------------------------------------------

GU  ORI
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52694.608     20448.5   -0.015    19   C. Stephan
53035.6009    21173     -0.0309   92   G. Samolyk (CCD)   0.0004
53314.9481    21766.5   -0.0329   40   G. Samolyk (CCD)   0.0005
53323.8904    21785.5   -0.0335   76   G. Samolyk (CCD)   0.0005
53368.6039    21880.5   -0.0347   14   S. Dvorak (CCD)    0.0004
53413.7883    21976.5   -0.0357   67   G. Samolyk (CCD)   0.0004
53435.6774    22023     -0.0333   89   G. Samolyk (CCD)   0.0005
53735.7347    22660.5   -0.0351   63   R. Poklar (CCD)    0.0004
53763.7384    22720     -0.0369   86   G. Samolyk (CCD)   0.0003

----------------------------------------------------------------

U PEG
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52568.721     42844     -0.083     6   G. Sarty
52585.5777    42889     -0.0917   50   J. A. Howell (CCD) 0.0001
52968.5993    43911     -0.0967   52   J. Bialozynski(CCD)0.0003
52998.584     43991     -0.095    16   G. Samolyk
53197.7758    44522.5   -0.0990   33   B. Manske (CCD)    0.0002
53314.7069    44834.5   -0.0998   70   G. Samolyk (CCD)   0.0002
53315.6414    44837     -0.1022   37   S. Dvorak (CCD)    0.0003
53709.5302    45888     -0.1087   65   G. Samolyk (CCD)   0.0002

----------------------------------------------------------------

DI PEG
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52986.5913    10944     -0.0198   47   S. Dvorak (CCD)    0.0001
52993.711     10954     -0.018    15   G. Samolyk
53001.542     10965     -0.017    13   D. Williams
53267.7599    11339     -0.0188   28   G. Samolyk (CCD)   0.0001
53285.557     11364     -0.017    15   G. Chaple
53290.540     11371     -0.017    15   G. Chaple
53292.679     11374     -0.013    12   C. Stephan
53645.7354    11870     -0.0180   52   G. Samolyk (CCD)   0.0001
53728.3061    11986     -0.0181   66   J. Coloma (CCD)    0.0001

----------------------------------------------------------------

IU PER
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
43420.756     -2556     -0.124     7   G. Samolyk
43469.581     -2499     -0.149     9   G. Samolyk
43798.694     -2115     -0.134    11   G. Samolyk
43876.660     -2024     -0.157    11   G. Samolyk
44236.619     -1604     -0.149    11   G. Samolyk
46028.744       487     -0.063    17   G. Samolyk
50369.649      5552      0.010    12   S. Cook (CCD)
52586.7698 7)  8139      0.0065   35   S. Dvorak (CCD)    0.0002
52591.9106     8145      0.0052        T. Shoup (CCD)     0.0003
52611.6230     8168      0.0060   76   J. A. Howell (CCD) 0.0001
53312.671      8986      0.007    27   S. Cook (CCD)
53456.6554     9154      0.0116   85   C. Hesseltine(CCD) 0.0005
53834.6009     9595      0.0091   59   C. Hesseltine(CCD) 0.0003

7) Observations combined from 52586 and 52611

----------------------------------------------------------------

RV PSC
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51870.509     49620     -0.027    10   G. Samolyk
52204.5542    50223     -0.0384   52   G. Samolyk (CCD)   0.0005
52220.6211    50252     -0.0372   33   S. Dvorak (CCD)    0.0002
52645.5301    51019     -0.0397   45   S. Dvorak (CCD)    0.0002
53061.5762    51770     -0.0412   40   G. Samolyk (CCD)   0.0004
53238.8520    52090     -0.0426   47   G. Samolyk (CCD)   0.0002
53303.6691    52207     -0.0425   38   J. Bialozynski(CCD)0.0004
53683.711     52893     -0.039    16   C. Stephan
53693.686     52911     -0.036    17   C. Stephan
53945.7430    53366     -0.0447   40   G. Samolyk (CCD)   0.0003

----------------------------------------------------------------

V505 SGR
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51777.648      6185     -0.003    14   G. Samolyk
52133.682      6486     -0.014    14   D. Williams
52146.694      6497     -0.013    18   G. Samolyk
52489.724      6787     -0.016    18   G. Samolyk
52495.646      6792     -0.008    14   G. Samolyk
52883.612      7120     -0.024    16   C. Stephan
53239.656      7421     -0.025    19   G. Samolyk
53265.676      7443     -0.028    18   G. Samolyk

----------------------------------------------------------------

RW TAU
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51930.5387     2256     -0.1584   75   G. Samolyk (CCD)   0.0001
52265.562      2377     -0.164    17   C. Stephan
52287.709      2385     -0.168    22   G. Samolyk
52312.628      2394     -0.168    27   G. Samolyk
52636.572      2511     -0.178    20   G. Chaple
53314.9196     2756     -0.1953   82   G. Samolyk (CCD)   0.0003
53353.6804     2770     -0.1982   40   S. Cook (CCD)
53414.5923     2792     -0.2007   63   J. Bialozynski(CCD)0.0003
53699.773      2895     -0.210    22   R. Hays
53741.3048     2910     -0.2108   20   R. Papini (CCD)    0.0003
53774.531      2922     -0.211    20   G. Chaple
53785.604      2926     -0.213    22   R. Hays
53785.6047     2926     -0.2123   80   G. Samolyk (CCD)   0.0001

----------------------------------------------------------------

HU TAU
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
51867.344      5151      0.022     9   S. Foglia
51902.289      5168      0.010    12   S. Foglia
51912.582      5173      0.022    22   G. Samolyk
51951.633      5192      0.003    22   G. Samolyk
52268.307      5346      0.007    10   S. Foglia
52609.657      5512      0.011    20   G. Samolyk
52615.819      5515      0.004    19   G. Samolyk
52975.679      5690      0.012    24   G. Samolyk
53672.768      6029      0.015    25   G. Samolyk

----------------------------------------------------------------

V TRI
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52900.674     48575     0.002     14   M. Baldwin
52986.6965    48722    -0.0006    46   G. Samolyk (CCD)   0.0002
53001.334     48747     0.007      8   M. Csukas
53315.5830    49284     0.0003    50   G. Samolyk (CCD)   0.0001
53315.592     49284     0.009     24   G. Chaple
53339.5759    49325    -0.0003    79   S. Dvorak (CCD)    0.0001
53374.689     49385     0.001     19   C. Stephan
53384.635     49402    -0.002     16   S. Cook (CCD)
53683.677     49913     0.000     17   C. Stephan
53714.6914    49966    -0.0016    40   G. Samolyk (CCD)   0.0003

----------------------------------------------------------------

X TRI
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52675.615     10471     -0.051    11   R. Hays
53288.647     11102     -0.058    12   D. Williams
53289.618     11103     -0.058    12   R. Hays
53323.622     11138     -0.058    24   G. Samolyk
53324.591     11139     -0.061    24   G. Chaple
53330.419     11145     -0.062    35   I. Megson
53357.6232    11173     -0.0606        C. Haza (CCD)      0.0001
53359.5663    11175     -0.0606        C. Haza (CCD)      0.0001
53392.597     11209     -0.062    36   S. Cook (CCD)
53393.5696    11210     -0.0610   52   G. Samolyk (CCD)   0.0001
53696.686     11522     -0.064    14   R. Hays
53767.603     11595     -0.069    14   R. Hays

----------------------------------------------------------------

W UMA
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
53304.8951    22597     -0.0498   88   S. Dvorak (CCD)    0.0001
53411.652     22917     -0.057    11   S. Cook (CCD)
53414.491     22925.5   -0.054    11   S. Cook (CCD)
53417.331     22934     -0.050    35   I. Megson
53451.696     23037     -0.049    27   S. Cook (CCD)
53463.717     23073     -0.039    15   D. Williams
53472.712     23100     -0.053    24   S. Cook (CCD)
53645.8709    23619     -0.0515   30   G. Samolyk (CCD)   0.0003
53753.6362    23942     -0.0511   46   R. Poklar (CCD)    0.0006
53847.723     24224     -0.050    16   C. Stephan

----------------------------------------------------------------

XZ UMA
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52723.662      5363     -0.066    18   C. Stephan
52756.662      5390     -0.069    13   D. Williams
53002.349      5591     -0.068    14   J. Virtanen
53080.579      5655     -0.067    18   G. Chaple
53394.7053     5912     -0.0765  191   S. Dvorak (CCD)    0.0001
53421.595      5934     -0.078    19   G. Chaple
53432.5961     5943     -0.0777   62   G. Samolyk (CCD)   0.0002
53460.710      5966     -0.077    26   S. Cook (CCD)
53471.713 :    5975     -0.075    15   R. Hill

----------------------------------------------------------------

RU UMI
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
52723.712     21198     -0.010    15   C. Stephan
52920.5572    21573     -0.0118   50   G. Samolyk (CCD)   0.0002
53195.6176    22097     -0.0127   32   G. Samolyk (CCD)   0.0003
53430.782     22545     -0.015    15   S. Cook (CCD)
53463.865     22608     -0.003    13   D. Williams
53544.693     22762     -0.013    39   S. Cook (CCD)
53616.614     22899     -0.007    20   G. Chaple
53691.670     23042     -0.016    14   C. Stephan
53765.6883    23183     -0.0118   86   R. Poklar (CCD)    0.0002

----------------------------------------------------------------

VV VIR
JD(min)                                                   STANDARD
  HEL.        CYCLE     O-C      N     OBSERVER           ERROR
2400000 +
50572.792     43376     -0.011   18    G. Samolyk
50921.674     44158     -0.007   15    G. Samolyk
50991.709     44315     -0.016   11    R. Hill
51679.6436    45857     -0.0224  31    G. Samolyk (CCD)   0.0003
52042.7965    46671     -0.0240  43    G. Samolyk (CCD)   0.0002
52398.8091    47469     -0.0278  36    G. Samolyk (CCD)   0.0002
52779.816     48323     -0.021   26    R. Hill
53077.8242    48991     -0.0313  42    G. Samolyk (CCD)   0.0002
53148.750     49150     -0.041   17    R. Hill
53500.760     49939     -0.032   16    R. Hill
53882.6510    50795     -0.0334  65    G. Samolyk (CCD)   0.0003
53890.6806    50813     -0.0343  50    C. Hesseltine(CCD) 0.0002
=========================================