Would there be any interest in undertaking a coordinated effort to support the Alert Notice 836: "AAVSO and SNEWS partner in campaign to monitor bright supernova progenitors", using AAVSOnet? There is a link to a google spreadsheet in the Alert description with 192 targets listed with mag 0-9.9. Cadence specified as once or twice weekly. One possible approach would be to have AAVSO members "signup" to perform photometry on a subset of stars from the list per week. We would want to have each member signup for a unique set of target stars in order to cover the maximum number of stars in the list. A master list of target stars would need to be created and maintained.
Would this type of effort be practical based on available scope time and volunteer time required to support this project? Thoughts?
Here is a link to the Alert and SNEWS campaign:
I'd be up for participating in a coordinated effort, if AAVSOnet is determined to be an appropriate tool.
Very good! I copied the SNEWS google sheet target list and added a column "Observer". This copied sheet is global and editable, so that an observer could add his observer code to the stars he was planning on monitoring for the project. I was thinking that I would sign up for10 stars and create an AAVSOnet proposal for those stars.
Could you check out the google sheet link below and see if you can update it with your observer code? If this works I'll post the link on the SNEWS campaign forum for anyone who wants to coordinate their observations. Thanks!
https://docs.google.com/spreadsheets/d/13g_cnZwEbwFDS0Auxo5dDRqOHPgKXjTJRiIZhAMqVr4/edit?usp=sharing
I've signed up for 10, mostly in Cas and Car and all with a maximum that's dimmer than 6.0. I'll submit the AAVSOnet proposal later tonight.
I will post the spreadsheet link and brief description on the SNEWS forum. Thanks!
The AAVSOnet is concerned that it will be swamped with too many proposals for subsets of the SNEWS star list. So the AAVSOnet is planning to have all the SNEWS stars observed and set up a "Subscription" service where people can ask for the images to be sent to them. They will then handle the processing and posting of the data to the AID.
The google sheet that has been setup is a great idea. With permission I would add a column to the sheet and then monitor the entries daily with a program on the AAVSOnet server.
Here is how it should work:
- Observers adding their obscode to the "Observer" column are indicating that they intend to observe and submit data for the star on that line. This helps observers avoid duplication of effort.
- I'll add a column next to this labeled "AAVSOnet subscriber". If you put your obscode here the AAVSOnet will automatically send the images it takes to you. You will receive a "You've got data" email telling you where to download the images.
The ground rules would be the same as if you submitted an AAVSOnet proposal:
- must be an AAVSO member
- endeavor to examine the images in a timely manner
- provide feedback to the AAVSOnet if the fov needs to be adjusted to capture the comps or if exposure needs adjustment.
- try to use the comp stars in the charts that have been prepared and are noted in the google sheet's "Chart Link" column.
- If you want to stop the flow of images, simply remove your name from the "AAVSOnet subscriber" column.
- More than one person may add their obscode to this column, but only the first in line will get the images. The other people will be next in line if the first drops out.
We are sorting out the details on how this is to work, so it won't be operational for a couple weeks.
Any comments on this plan? Concerns? We need your feedback and participation to make this "Subscription Service" concept work.
George
I'm happy to sign-up for stars on the SNEWS sheet to submit to AID. I'm more interested in the brighter stars, so I put my observer code into a few on the spreadsheet, but do not see the "AAVSOnet subscriber" column yet.
Count me in to help out, if all of these stars will be added to AAVSOnet campaigns.
Thanks,
Andrew Corkill (CANG)
I will definitely subscribe once it is up and running.
The subscription plan for SNEWS stars is ready to go.
Instructions are at https://www.aavso.org/snews-campaign#aavsonet
My thanks to Brian Ramey for the idea to use a google sheet. The link above will take you to the master SNEWS google sheet where you will be able to sign up for star images.
There is a Slack channel, aavsonet-snew, in the AAVSO Community workspace. There we will field questions and help others in this campaign team.
Images should be coming through soon!
Cheers,
George
Wait, there's an AAVSO Slack? How do we get on that? I haven't seen that mentioned before.
Yes, come and join us!
https://aavsocommunity.slack.com/join/shared_invite/zt-1dmobb7xx-mIwkHVlJADGQIPZAyVjqYA#/shared-invite/email
George
BSM_NM got some images from the SNEWS plan on 12/14 and 12/15. Check the the operations page (https://app.aavso.org/aavsonet/operations/) and click on the number of images and look for AAVSO_SNEWS_HQ_AUTO. If you signed up for a star on the list and the images haven't shown up, let us know here and/or on the SLACK channel.
Hi Daniel,
I've signed up on SNEWs (CANG) and see that I've been moved over to "subscriber" on those stars, but no images yet.
Thanks,
Andrew Corkill (CANG)
OK thanks for reporting. We will take a look.
DanZ
These are the observations that have been made. The only star that I see a request for CANG is NSV 3503, but there were two requests and the actual subscriber is listed as FERA. I think at the moment we can not handle multiple subscribers. Let me know if I've missed anything, but I don't think any star that you are subscribed to has been observed yet.
DanZ
Thurs 12/16
Project: AAVSO_SNEWS_HQ_AUTO time spent: 3 min
2/ 3 : psi_1_Aur I V
Fri 12/17
Project: AAVSO_SNEWS_HQ_AUTO time spent: 32 min
2/ 3 : GP_Cas I V
2/ 3 : HD_232766 I V
2/ 3 : KQ_Pup I V
2/ 3 : NO_Aur I V
2/ 3 : NSV_3503 I V
2/ 3 : NSV_929 I V
2/ 6 : NSV_985 I V
0 : QY_Pup 2/ 8 :
TV_Gem I V
2/ 3 : V0704_Cas I
V 2/ 3 : WY_Gem I V
Sun 12/17
Project: AAVSO_SNEWS_HQ_AUTO time spent: 26 min
2/ 4 : KQ_Pup I V
2/ 4 : NO_Aur I V
2/ 4 : NSV_3503 I V
2/ 3 : NSV_929 I V
2/ 6 : NSV_985 I V
2/ 4 : psi_1_Aur I V
2/ 3 : QY_Pup I V
2/ 8 : TV_Gem I V
2/ 3 : V0411_Per I V
2/ 3 : V0704_Cas I V
2/ 3 : WY_Gem I V
I received images for psi 1 Aur in I and V. There were no comp stars for either filter. The I image (6 seconds) was saturated. V (9.21 seconds) looked OK but no comp stars.
Dave (HDHA)
The I exposure for psi 1 Aur has already been adjusted by the automatic routine. As far as comp stars have you tried using "load APASS Data"? These tend to be pretty red stars so the comps will not always be ideal. Might be a good topic for discussion.
That worked…
Thanks Daniel,
That worked for the V filter. I didn't realize you can use APASS as comp stars, but it makes sense.
Dave
psi 1 Aur is still saturated in I and V. For V = 9.21 seconds SNR = 1917and for I = 4.61 seconds SNR = 1634.
Dave (HDHA)
Please email exposure change requests to snews@gasilvis.net
We'll cut this 2.5s and 1.5s and go from there.
This is going to be a difficult target to find comps for. We'll also up the image count in the hope of getting adequate SNR for the comps
George
I have been managing an AAVSONet proposal that has been looking at some of the stars on the preliminary SNEWS list. I will add my observer code to the spreadsheet for the stars monitored by that proposal. I also have developed some python code that prints stats for a campaign and graphs for the latest data. I guess I can't attach the output, but I can put in the text summary. If there is interest I will clean this up so others can use the code. I also notice i have some debugging to do as the VSX search returns the correct 192 stars but this api call is returning 224 stars. Anyway it will give you an idea of which stars are already being observed and which are not.
DanZ
Status Report for SNEWS Campaign
Created 2023-10-22T13:25:57.943460 UTC
224 stars in campaign
18 stars with no observations
RA2000 Dec2000 VarType Constellation MaxMag
StarName
NSV 3503 109.15346 -23.31558 LC CMa 4.78 V
NSV 18422 157.21904 -64.17228 LC Car 5.21 V
V0398 Cas 350.62821 59.30725 LC Cas 8.69 V
NSV 319 12.81825 61.80550 LC Cas 6.04 V
NSV 693 30.36116 64.14388 SR Cas 8.9 V
ASAS J125922-6116.8 194.84325 -61.27958 SRC Cen 9.40 V
IRAS 22183+5547 335.04508 56.04003 LC Cep 9.4 V
NSV 13 1.12550 -10.50953 LC Cet 4.92 V
NS Pup 122.83954 -39.61856 LC Pup 4.40 V
DQ Pup 112.29667 -26.17558 SRC Pup 9.8 V
NSV 3717 116.23746 -15.69722 SRC Pup 7.90 V
ASAS J075143-3027.1 117.93046 -30.45108 SRC Pup 9.50 V
V1061 Sco 249.41696 -42.95133 LC Sco 7.98 V
ASAS J173450-3416.6 263.71021 -34.27681 LC Sco 9.6 V
ASAS J181826-1518.2 274.60725 -15.30367 LC Ser 8.63 V
NSV 24793 292.53967 -19.38567 LC Sgr 7.63 V
NSV 4437 139.09600 -44.26572 LC Vel 5.08 V
V0572 Vul 301.45975 25.60089 SRC Vul 7.85 V
Stars with fewest observations
RA2000 Dec2000 DataCount VarType Constellation MaxMag LatestObservation Lapse LastResult
StarName
12 Peg 326.51817 22.94889 1 LC Peg 5.26 V 2021-12-03 23:55 687.6 5.3 Vis.
V0915 Sco 258.61525 -39.76664 1 SRD Sco 6.22 V 2022-09-25 12:33 392.0 8.822 B
V0774 Sgr 268.60888 -23.23603 1 LC Sgr 9.1 V 2023-10-15 00:50 7.5 8.751 V
V0538 Car 170.02596 -65.25197 2 SRC Car 7.7 V 2012-02-15 00:22 4267.5 8.4 Vis.
ASAS J170913-4111.6 257.30500 -41.19381 2 SRC Sco 8.59 V 2022-09-25 12:32 392.0 8.845 V
V0540 Sgr 270.01792 -35.92761 3 LC Sgr 8.43 V 2023-10-18 01:04 4.5 7.971 V
NSV 16609 84.81179 23.32336 3 LC Tau 7.47 V 2022-12-27 20:39 298.7 5.465 I
EH Cas 356.40396 62.34900 4 LC Cas 9.74 V 2015-10-09 23:34 2934.6 9.874 V
HD 11092 27.82050 64.85494 4 LC Cas 6.53 V 2023-03-21 01:08 215.5 7.793 SG
V0771 Cen 171.74858 -61.36933 4 SRC Cen 6.37 V 2023-07-05 01:13 109.5 7.2 Vis.
V0517 Mon 102.71875 -0.07319 4 LC Mon 8.4 V 2023-10-19 06:09 3.3 7.921 V
NSV 23546 265.85833 -35.29767 4 SRC Sco 6.91 V 2022-06-26 16:57 482.9 4.337 I
NSV 9929 269.77200 -30.25303 4 LC Sgr 5.14 V 2022-06-26 16:53 482.9 2.866 I
ASAS J103803-5649.1 159.51246 -56.81719 4 LC Vel 7.77 V 2023-02-24 21:16 239.7 7.760 V
HD 101814 175.65596 -60.42075 5 LC Cen 7.29 V 2023-03-19 21:33 216.7 5.149 I
HD 201065 316.39913 46.96328 5 LC Cyg 7.55 V 2023-04-21 11:37 184.1 9.316 B
CD-44 11324 254.73983 -44.40133 5 SRC Sco 9.38 V 2023-01-23 20:43 271.7 8.498 SR
V0337 Car 154.27075 -61.33231 6 LC Car 3.34 V 2020-08-16 21:02 1161.7 3.6 Vis.
NSV 4922 159.68750 -59.18300 6 LC Car 4.68 V 2018-08-05 18:34 1903.8 4.9 Vis.
HD 98817 170.41237 -60.99117 6 LC Cen 7.58 V 2023-03-14 21:30 221.7 10.031 B
V0528 Car 165.77562 -60.91072 7 LC Car 6.27 V 2023-03-10 21:26 225.7 6.633 V
V0365 Nor 242.04517 -53.07894 7 LC Nor 6.87 V 2023-02-07 20:59 256.7 4.986 I
tet Del 309.68329 13.31514 8 LC Del 5.68 V 2023-04-21 10:04 184.1 4.401 I
NSV 3213 101.90508 -8.99850 8 LC Mon 5.04 V 2022-10-25 09:15 362.2 6.929 B
V0348 Vel 156.56517 -53.89147 8 SRC Vel 6.56 V 2023-02-13 21:04 250.7 7.040 V
V0774 Cas 26.75004 60.37233 9 SRC Cas 8.44 V 2023-01-09 05:23 286.3 10.704 B
IM Cas 23.00104 62.32903 10 SRC Cas 7.97 V 2021-12-30 21:29 660.7 8.359 CV
V0704 Cas 46.91879 60.48947 11 SRC Cas 8.75 V 2023-10-17 03:01 5.4 9.947 TG
NSV 15324 23.35979 54.94486 11 LC Cas 6.89 V 2022-07-19 11:20 460.1 6.129 R
BD+59 580 45.16646 59.96667 11 LC Cas 9.90 V 2022-03-09 02:40 592.4 7.179 I
Stars with longest time since last observation
RA2000 Dec2000 DataCount VarType Constellation MaxMag LatestObservation Lapse LastResult
StarName
V0538 Car 170.02596 -65.25197 2 SRC Car 7.7 V 2012-02-15 00:22 4267.5 8.4 Vis.
V0520 Car 160.88454 -60.56661 18 LC Car 4.50 V 2014-03-27 02:35 3496.5 4.5 Vis.
EH Cas 356.40396 62.34900 4 LC Cas 9.74 V 2015-10-09 23:34 2934.6 9.874 V
NSV 4922 159.68750 -59.18300 6 LC Car 4.68 V 2018-08-05 18:34 1903.8 4.9 Vis.
PS Mus 193.79246 -68.90678 264 LC Mus 6.52 V 2019-04-22 09:00 1644.2 7.0 Vis.
V2125 Cyg 308.47579 35.25083 94 LC Cyg 4.55 V 2019-06-16 09:18 1589.2 4.7 Vis.
V0419 Cep 318.19687 60.09800 233 LC Cep 6.44 V 2020-02-24 19:46 1335.7 6.63 Vis.
V0466 Cas 19.97342 58.30853 87 LC Cas 8.58 V 2020-02-28 19:10 1331.8 9.70 Vis.
V0337 Car 154.27075 -61.33231 6 LC Car 3.34 V 2020-08-16 21:02 1161.7 3.6 Vis.
V0772 Cen 175.45583 -63.41458 753 SRC Cen 7.41 V 2020-09-03 09:00 1144.2 8.05 TG
ASAS J124416-6156.4 191.06729 -61.93922 317 SRC Cru 9.5 V 2020-09-22 09:00 1125.2 9.84 TG
KW Sgr 268.00304 -28.02239 536 SRC Sgr 8.66 V 2020-10-10 00:20 1107.5 9.9 Vis.
V0396 Cen 199.35433 -61.58397 1446 SRC Cen 7.48 V 2020-11-14 13:30 1072.0 7.93 TG
V0530 Car 166.12150 -62.96214 19 SRC Car 8.08 V 2020-12-05 12:45 1051.0 8.53 TG
V0923 Cen 177.92892 -61.15844 15 SRC Cen 7.76 V 2020-12-06 12:45 1050.0 8.09 TG
BE Cam 57.38033 65.52597 73 LC Cam 4.35 V 2021-01-13 01:15 1012.5 4.408 V
V0412 Cen 209.36704 -57.71111 212 SRC Cen 7.0 V 2021-01-25 19:17 999.8 7.5 Vis.
V0340 Sge 294.85558 16.57111 67 LC Sge 6.31 V 2021-08-28 22:25 784.6 6.6 Vis.
V0809 Cas 349.84904 62.73978 29 LC Cas 6.65 V 2021-09-15 22:00 766.6 6.8 Vis.
V0550 Per 33.80542 58.14231 119 SRC Per 8.81 V 2021-10-12 06:01 740.3 8.789 V
AX Sgr 272.11046 -18.55219 321 SRD Sgr 7.05 V 2021-11-12 16:54 708.9 7.7 Vis.
12 Peg 326.51817 22.94889 1 LC Peg 5.26 V 2021-12-03 23:55 687.6 5.3 Vis.
IM Cas 23.00104 62.32903 10 SRC Cas 7.97 V 2021-12-30 21:29 660.7 8.359 CV
NSV 13784 323.32450 45.85403 1877 LC Cyg 6.23 V 2022-01-04 19:45 655.7 7.3 Vis.
V0778 Cas 29.62046 59.26911 186 SRC Cas 8.20 V 2022-01-12 19:50 647.7 8.532 CV
BD+59 580 45.16646 59.96667 11 LC Cas 9.90 V 2022-03-09 02:40 592.4 7.179 I
V0362 Aur 81.79258 29.92106 105 LC Aur 7.09 V 2022-04-06 03:20 564.4 4.846 I
GS Vel 161.37838 -56.61172 12 LC Vel 9.21 V 2022-05-02 11:47 538.1 7.294 SI
V0361 Car 158.93233 -58.24500 50 LC Car 7.09 V 2022-05-06 17:50 533.8 5.044 I
AB Pyx 127.62417 -36.72133 57 LC Pyx 6.37 V 2022-05-25 11:02 515.1 6.052 R