AAVSO Sudden Ionospheric Disturbance Report May 1992 Observers: A-03 A-09 A-40 A-50 A-59 A-61 A-62 A-63 A-65 A-66 A-67 A-68 A-69 A-70 A-71 A-72 A-73 A-74 YYMMDD Event Peak (UT) Importance 920501 1148 1- 920501 1609 1- 920501 1730 1 920501 1859 1- 920501 2259 1 920502 0000 1- 920502 1552 1- 920502 1613 2 920502 1716 1- 920502 1830 2+ 920502 2224 1- 920503 0855 2+ 920503 1742 1- 920503 1939 1 920504 0015 1- 920504 0446 2+ 920504 0940 2+ 920504 1134 2+ 920504 1345 1- 920504 1408 1- 920504 1430 1 920504 1536 1- 920504 1730 2 920504 1847 1- 920504 2019 3 920505 1332 1- 920505 1510 1 920505 1651 1 920505 1713 1+ 920505 1805 1 920505 1910 1 920505 1933 2 920505 2015 2+ 920505 2103 1+ 920506 0431 2 920506 1003 1- 920506 1240 1 920506 1922 1- 920507 1207 1- 920507 1400 1- 920507 1535 1+ 920507 1807 1- 920507 2153 1- 920507 2349 1- 920508 1207 1 920508 1336 1- 920508 1524 3 920508 1803 1- 920509 2007 1+ 920509 2338 1- 920510 1515 2 920510 1715 1- 920511 0644 1- 920511 1309 1- 920512 1755 1 920512 1830 1 920513 1429 1 920514 0040 1- 920514 1603 1 920514 2119 1 920515 0025 1- 920515 0403 1- 920515 1428 1- 920517 2118 1 920518 1654 1- 920518 1705 1- 920518 1746 1 920518 1843 1 920518 1939 1 920518 2219 1- 920518 2307 1- 920519 1138 1+ 920519 1546 1+ 920520 0908 1- 920520 1615 1- 920521 0613 1- 920521 0715 1- 920521 1222 1- 920521 1344 1- 920521 1400 1- 920521 1809 2 920522 1446 1- 920522 1726 1 920522 2001 1- 920523 0054 1- 920523 1233 1- 920523 1659 1 920523 2240 1- 920524 1029 1- 920524 1345 1- 920524 2223 1- 920524 2317 1- 920525 1311 1- 920525 1407 1- 920525 1639 1- 920525 1939 1- 920526 0848 1 920526 2004 1 920527 0111 1 920527 1129 1- 920527 1200 1- 920527 1439 2 920527 1536 1- 920527 2000 1- 920527 2229 1- 920528 1514 1 920528 1815 1- 920529 0530 1- 920529 1026 1+ 920529 1303 1- 920529 1448 1- 920530 1759 1- 920530 2217 1- 920531 0916 1 920531 1246 1 920531 1458 1- 920531 1658 2 920531 2353 1+ ******************************************* Importance Summary May 1992 1- events: 67 1 events: 27 1+ events: 8 2 events: 8 2+ events: 6 3 events: 2 3+ events: 0 Total events: 118