Detailed Description

Color Key Case pending Case closed Case reopened QA note LDOPE QA Home
Case #:AS_MYD_21278   Opening date: 10/05/21   Last update: 10/05/21
Status: Note
Users of MODIS Science data products are requested to note that MODIS Aqua is scheduled to exit the 'Afternoon Constellation' of Earth Science satellites by February, 2023. The last of Aqua mission maneuver was done on March 18, 2021 to maintain the mean local time (MLT) of 01:30 PM and 705km altitude. Thereafter, Aqua has been drifting slowly from its MLT and will reach and exceed 01:45 PM MLT by February 2023, when it will make the constellation exit with a lowered orbit altitude. More information in this regard can be found here.

Please note that this does not indicate the end of life for Aqua mission and Aqua is expected to remain operational for at least another few more years and NASA SIPS will continue to produce and distribute science quality data through Fall of 2026. There may be some limited impact on the science data because of the changing MLT and the lowering of orbital altitude but overall, it is not expected to have any major impact on the science data quality.

We will continue to provide further updates in this regard as we get further inputs from the different land science teams.

Occurrence: AQUA C6 / C61 L1B and all Downstream products for the times listed above.