This announcement is a follow up to the CYGNSS Data Processing Announcement from March 14, 2023.

CYGNSS spacecraft altitudes began to occasionally drop below 500 km beginning on 2023-01-08 during orbit perigee. L1-L3 v2.1 and v3.1 algorithms have recently been updated to properly calibrate samples made below 500 km and their data products beginning on 2023-03-19 now include these samples. The next planned product release is v3.2 and it will reprocess all samples below 500 km, beginning on 2023-01-08.