| PREFIRE-SAT2 Operations Log | |
| All entries are subject to future refinement; some data product outages are due to reasons not captured here (TIRS = Thermal InfraRed Spectrometer ; SEU = Single-Event Upset) |
|
| UTC Start Date (to End Date) | Log Entry |
|---|---|
| 2024-06-29 | Prime-mission science data acquisition mode begins (21:18:39 UTC) |
| 2024-07-01 | End of TIRS-2 in-orbit checkout (IOC; 00:00:00 UTC) |
| 2024-07-17 | Bus in safe mode (SEU); brief science data dropout |
| 2024-08-12 | Bus in safe mode (SEU); short science data dropout |
| 2024-08-20 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-09-15 (to 2024-09-16) | Bus in safe mode (SEU); science data dropouts |
| 2024-09-16 | Bus in safe mode (other); science data dropouts |
| 2024-09-19 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-10-18 | Bus in safe mode (SEU); brief science data dropout |
| 2024-10-22 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-10-29 (to 2024-10-30) | Instrument (payload) in SEU-induced safe mode; science data dropouts |
| 2024-11-01 (to 2024-11-02) | Bus in safe mode (SEU); short science data dropout |
| 2024-11-06 (to 2024-11-08) | Ground system issue; numerous bus telemetry dropouts |
| 2024-11-19 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-11-21 | Bus in safe mode (SEU); science data dropouts |
| 2024-12-05 | Bus in safe mode (SEU); science data dropouts |
| 2024-12-19 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-12-25 (to 2024-12-26) | Bus in safe mode (SEU); short science data dropout |
| 2025-01-18 (to 2025-01-19) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-02-19 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-02-25 (to 2025-02-26) | Bus storage lockup; science data dropouts |
| 2025-02-27 | Bus in safe mode (other); science data dropouts |
| 2025-03-10 (to 2025-03-12) | Bus storage lockup; science data dropout |
| 2025-03-19 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-03-21 (to 2025-03-26) | Storage lockup; science data dropouts |
| 2025-03-24 | Bus in safe mode (other); science data dropouts |
| 2025-04-19 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-04-23 | Bus in safe mode (other); science data dropouts |
| 2025-05-09 (to 2025-05-13) | Bus storage lockup; science data dropouts |
| 2025-05-16 (to 2025-05-19) | Bus storage lockup; science data dropouts |
| 2025-05-19 | Bus in safe mode (SEU); science data dropouts |
| 2025-05-20 (to 2025-05-22) | Bus storage lockup; science data dropouts |
| 2025-05-21 | Rapid calibration sequences; interrupted |
| 2025-05-22 | Bus in safe mode (other); science data dropouts |
| 2025-05-23 | Bus storage lockup; science data dropouts |
| 2025-05-29 (to 2025-05-30) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-06-02 (to 2025-06-05) | Bus storage lockup; science data dropouts |
| 2025-06-05 | Bus in safe mode (SEU/other); science data dropouts |
| 2025-06-10 | Bus in safe mode (SEU); brief science data dropout |
| 2025-06-14 (to 2025-06-16) | Bus storage lockup; science data dropouts |
| 2025-06-19 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-06-24 | Bus in safe mode (SEU); short science data dropout |
| 2025-07-08 (to 2025-07-09) | Bus storage lockup; science data dropouts |
| 2025-07-19 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-07-22 | Bus in safe mode (SEU); science data dropouts |
| 2025-07-23 | Bus in safe mode (SEU); science data dropouts |
| 2025-07-25 (to 2025-07-26) | Bus in safe mode (SEU); short science data dropout |