| Year |
Date |
Day of Year |
Type and Results |
| 1990 |
Dec. 31 |
365 |
Telescope safes (FGE 3 bit flip); UV flood. |
| 1991 |
Jan. 02 |
002 |
Mini-low-temperature decon. |
| 1991 |
Jan. 26 |
026 |
De-ice decon (-82C) - failed to remove daisies. |
| 1991 |
Jan. 28 |
028 |
Mini-low temperature (-20C) - removed daisies; got measles. |
| 1991 |
Jan. 29 |
029 |
Low temperature decon (-15C) - removed measles. |
| 1991 |
May 02 |
122 |
PSEA hardware safemode (CCDs at -35 for 80 hrs); measles. |
| 1991 |
May 08 |
128 |
Hot-junction decon (+12C) - removed measles. |
| 1991 |
Jul. 03 |
184 |
WIDLE turned WFC TEC off for 7 hrs (WFC reached -25C) - measles. |
| 1991 |
Jul. 05 |
186 |
Flash decon (+6C) - removed measles. |
| 1992 |
Feb. 03 |
034 |
Flash decon - restored UV transmission, removed scattering; left
measles. |
| 1992 |
Feb. 04 |
035 |
Flash decon (same as day 034) - measles still present. |
| 1992 |
Mar. 03 |
063 |
Hot junction decon - measles still present. |
| 1992 |
Mar. 08 |
068 |
Flash decon - measles still present. |
| 1992 |
Aug. 07 |
220 |
Flash decon (CCDs +3.5C to +8.5); persistent measles remain. |
| 1993 |
Aug. 02 |
214 |
Flash decon (CCDs +2 to +6C, except WF1 only -4C). |
