Nov. 30, 2022, 3:17 p.m.

Project: MISR

11/30/2022 Update:

The MISR instrument is in good health and continues to collect and downlink valid science data. Due to recent changes in the georectification software, posting of data products is on temporary hold until verification of the results is complete. Data products from October 13, 2022 and onward will be made publicly available as soon as possible. We apologize for the inconvenience. 

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10/11/2022 Original Announcement

Terra has completed all mission maneuvers related to maintaining a 10:30 mean local time (MLT) equator crossing, and began drifting to an earlier MLT in April 2021. In October 2022, Terra will have a 10:15 AM MLT crossing, and will continue to drift to earlier MLT. It is possible that some changes compared to the prior 22-year record may be detectable, particularly in observables (such as stratocumulus cloud fraction) that have a strong diurnal cycle, offering novel opportunities for application of MISR data to climate and environmental studies. Also in late 2022, the Terra orbit altitude will be lowered to 694 km. After constellation exit, MISR science observations will continue, with the major impact being that MISR ground tracks will no longer exactly repeat every 16 days. Data products will be associated with the closest path number that was in effect prior to constellation exit to preserve continuity for data users. Imagery will continue to be mapped to the same spatial grids as in the current Level 1, 2, and 3 data products. The Terra orbit changes are not expected to have any significant impacts on MISR data quality. For more information regarding Terra orbital drift, click on the link to the Terra website

Content obtained from MISR Home Page