The Events Monitor table below can be used to gather information on events that have taken place for a particular mission throughout its lifetime. Each event is associated with a sensor and category, with a provided start and end date of when the event occurred and completed. You can search events using the following dropdown menu below to search by a particular sensor and between a specified time frame.
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| Sensor | Category | Impact | Start Date | End Date | Message |
|---|---|---|---|---|---|
| PACE | Safe Mode | No Data | May 7 2025 | May 10 2025 | The PACE spacecraft entered safehold on May 7 at about 17:39 UTC on May 7. The cause was determined to be Moon interference in one star tracker while the other tracker was being reset, causing the Kalman filter covariance to go above a threshold that triggered an AP. Mission pointing mode was recovered at 21:13 on May 8, but the spacecraft entered safehold again at 22:12. This time an AP was triggered by anomalous CSS readings resulting from the solar array not being commanded in mission mode. Mission pointing mode was recovered at 16:47 on May 9, the instruments were recovered and science data collection resumed at 02:04 on May 10. |
| PACE_HARP2 | Science Operations | No Impact | May 16 2025 | May 16 2025 | Solar Calibration |
| PACE_OCI | Science Operations | No Impact | May 13 2025 | May 13 2025 | Deep Space Calibration |
| PACE_OCI | Science Operations | No Impact | May 13 2025 | May 13 2025 | Lunar Calibration |
| PACE_SPEXONE | Science Operations | No Impact | May 13 2025 | May 13 2025 | Deep Space Calibration |
| PACE_HARP2 | Science Operations | No Impact | May 13 2025 | May 13 2025 | Lunar Calibration |
| PACE_OCI | Science Operations | No Impact | May 12 2025 | May 12 2025 | Deep Space Calibration |
| PACE_OCI | Science Operations | No Impact | May 12 2025 | May 12 2025 | Lunar Calibration |
| PACE_SPEXONE | Science Operations | No Impact | May 12 2025 | May 12 2025 | Deep Space Calibration |
| PACE_HARP2 | Science Operations | No Impact | May 12 2025 | May 12 2025 | Lunar Calibration |
Showing events 1 to 10 out of 617
