Unavailability of Terra MODIS Data Products-- Updated
| Platform | Terra |
|---|---|
| Instrument | MODIS |
| Source | LAADS |
| Issue | alert |
| Last Updated | 2022-12-16 20:00:00 |
| Start | 2022-12-01 03:15:00 |
| End | 2022-12-25 00:00:00 |
| Description |
Update: 12-16-2022 03:15ET -- Collection 6.1 Terra forward processing has resumed at MODAPS as of 12/16/2022, following an update to the geolocation code to relax the "orbit_tolerance" limit that is imposed on MODIS geolocation data generation. This became necessary, following certain changes in the Terra orbit configurations, after the last two set of Terra Constellation Exit Maneuvers (CEMs) carried out in October, 2022. The orbit altitude is now lowered by about 5 km and the orbit period has shortened to about 7 seconds, so that necessitated some relaxation in the orbit checking tolerance. All Terra and combined product generation should now be back to nominal status. ----------------- Posted on: 12-09-22 -- The Terra MODIS data product generation has been on hold due to failure in the L1 geolocation processing since 2022-12-01 03:15:00 UTC (DOY 2022-335). The instrument is nominal in on-orbit operations. The geolocation team is actively looking into this but so far, all Terra MODIS processing has been on hold including processing of all Atmosphere and Land products. We will update this post once the processing starts and production resumes. |