November 12, 2019 – Recent Landsat 7 Data Recorder Anomaly
The Solid State Recorder (SSR), a component of Landsat 7’s Enhanced Thematic Mapper Plus (ETM+) sensor, experienced a “choke anomaly” late October 28, into early October 29, 2019 (DOY 302). This interruption to the satellite’s planned acquisitions lasted just over 5 hours.
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There were 56 images lost due to the anomaly. In addition, 76 image opportunities were lost while the onboard command load was halted in order to recover from the anomaly.
The following scenes were not acquired; they are displayed on the map. (click to enlarge)
Oct 28, 2019
Path 34 Rows 42-44
Path 50 Rows 18-25
Path 66 Rows 18-19, 45
Path 82, Rows 235-241
Oct 29, 2019
Path 98 Rows 18-23, 61-64
Path 114 Rows 18-21, 22-31, 34-37, 59-65
Path 130 Rows 18-59
Path 146 Rows 18-51
Please contact USGS Customer Services with any questions relating to the missing acquisitions.