| PREFIRE-SAT1 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 |
|---|---|
| 2024-07-24 | Prime-mission science data acquisition mode begins (20:45:50 UTC) |
| 2024-08-01 | End of TIRS1 in-orbit checkout (IOC; 00:00:00 UTC) |
| 2024-08-02 | Bus in safe mode (SEU); short science data dropout |
| 2024-08-19 (to 2024-08-20) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-08-20 | Bus in safe mode (SEU); brief science data dropout |
| 2024-08-27 (to 2024-08-28) | Bus in safe mode (SEU); science data dropouts |
| 2024-09-15 (to 2024-09-16) | Bus in safe mode (other); science data dropouts |
| 2024-09-19 (to 2024-09-20) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-09-30 (to 2024-10-02) | Instrument (payload) in SEU-induced safe mode; science data dropouts |
| 2024-10-08 (to 2024-10-10) | Instrument (payload) in SEU-induced safe mode; science data dropouts |
| 2024-10-16 | Bus in safe mode (SEU); short science data dropout |
| 2024-10-18 (to 2024-10-19) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-10-21 (to 2024-10-22) | Bus storage lockup; science data dropouts |
| 2024-10-21 | Bus in safe mode (other); science data dropouts |
| 2024-11-03 (to 2024-11-04) | Bus storage lockup; science data dropouts |
| 2024-11-03 | Bus in safe mode (SEU); science data dropouts |
| 2024-11-16 (to 2024-11-18) | Bus storage lockup; science data dropouts |
| 2024-11-18 (to 2024-11-19) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-11-28 | Bus in safe mode (SEU); short science data dropout |
| 2024-12-03 (to 2024-12-05) | Bus storage lockup; science data dropouts |
| 2024-12-03 | Bus in safe mode (SEU); science data dropouts |
| 2024-12-04 | Bus in safe mode (other); science data dropouts |
| 2024-12-09 (to 2024-12-11) | Bus in safe mode (other); science data dropouts |
| 2024-12-18 (to 2024-12-19) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2024-12-27 (to 2024-12-30) | Bus in safe mode (other); science data dropouts |
| 2025-01-19 | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-01-22 | Bus in safe mode (SEU); short science data dropout |
| 2025-01-23 | Bus in safe mode (SEU); short science data dropout |
| 2025-01-29 | Bus in safe mode (SEU); science data dropouts |
| 2025-02-18 | Rapid calibration sequences; interrupted |
| 2025-02-18 (to 2025-02-19) | Bus storage lockup; science data dropouts |
| 2025-02-19 | Bus in safe mode (SEU); science data dropouts |
| 2025-02-20 (to 2025-02-21) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-02-22 | Bus in safe mode (SEU); short science data dropout |
| 2025-03-18 (to 2025-03-19) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-04-18 (to 2025-04-19) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-05-05 (to 2025-05-06) | Bus storage lockup; science data dropouts |
| 2025-05-06 (to 2025-05-07) | Bus in safe mode (SEU); science data dropouts |
| 2025-05-14 | Bus in safe mode (SEU); short science data dropout |
| 2025-05-15 (to 2025-05-16) | Bus storage lockup; science data dropouts |
| 2025-05-18 (to 2025-05-19) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-05-30 | Bus storage lockup; science data dropouts |
| 2025-06-09 (to 2025-06-11) | Bus storage lockup; science data dropouts |
| 2025-06-18 (to 2025-06-19) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-06-20 (to 2025-06-23) | Bus storage lockup; science data dropouts |
| 2025-06-25 | Bus in safe mode (SEU); science data dropouts |
| 2025-07-10 | Bus in safe mode (other); science data dropouts |
| 2025-07-18 (to 2025-07-19) | Rapid calibration sequences (every 1 minute for 12 hours) |
| 2025-07-20 | Bus in safe mode (SEU); short science data dropout |
| 2025-07-22 | Bus in safe mode (SEU); brief science data dropout |
| 2025-07-25 (to 2025-07-28) | Instrument (payload) in SEU-induced safe mode; science data dropouts |