Fermi Gamma-ray Space Telescope

LAT Data Gaps

The table below lists gaps in the LAT data than are longer than 6 hours (0.25 days).

Start MET Stop MET Start Time Stop Time Duration (days) Notes
2506871792507101112008-12-11 11:19:382008-12-11 17:41:500.27
2584373432588560492009-03-11 04:09:012009-03-16 00:27:274.85Safe Hold
2760239932760555272009-09-30 17:19:512009-10-01 02:05:250.36
3408652143408895422011-10-21 04:46:522011-10-21 11:32:200.28
3562517823562746912012-04-16 06:49:402012-04-16 13:11:290.27
3776032933776620722012-12-19 09:48:102012-12-20 02:07:490.68
4041121184041556342013-10-22 05:21:552013-10-22 17:27:110.50
4254399714254886042014-06-26 01:46:082014-06-26 15:16:410.56
5196850475197392722017-06-20 20:57:222017-06-21 12:01:070.63
5428688075444581202018-03-16 04:53:222018-04-03 14:21:5518.39Safe Hold
5863628395864830252019-08-01 14:33:542019-08-02 23:57:001.39Sunpoint
6220269946220673292020-09-17 09:16:292020-09-17 20:28:440.47

For more information about Fermi's status and observing timeline, please see: