Fermi Gamma-ray Space Telescope

GBM Data Gaps

The table below lists times when at least one GBM detector was not taking data for a day or longer.

Start Time Stop Time GBM Dectectors Notes
2008-07-12 04:31:362008-07-12 16:46:43AllNo data due to safe hold
2008-09-14 01:23:052008-09-15 17:12:02AllNo data due to safe hold
2009-03-11 23:08:352009-03-14 14:10:00AllNo data due to safe hold
2016-03-03 12:20:152016-03-03 23:50:00B0 and B1Data not usable due to calibration
2018-03-16 05:12:00 2018-03-28 14:05:56AllNo data due to safe hold
2018-12-20 16:05:432018-12-31 18:02:14N0Autonomously turned off on-board due to thermal conditions
2018-12-20 16:05:432018-12-21 19:58:57N1, N2Autonomously turned off on-board due to thermal conditions
2018-12-21 19:58:572018-12-31 18:02:14N5Turned off due to thermal conditions
2019-02-01 16:17:492019-02-07 20:08:09N0Turned off due to thermal conditions
2019-02-01 16:17:492019-02-13 21:23:01N5Turned off due to thermal conditions
2019-08-01 14:29:102019-08-02 23:31:04AllNo data due to safe hold

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