GCN Circular 31445
Subject
Fermi-GBM Observations of Recent Bursting Activity from SGR J1935+2154
Date
2022-01-12T21:42:20Z (3 years ago)
From
Oliver J Roberts at USRA/NASA <oliver.roberts@nasa.gov>
O.J. Roberts (USRA/NASA-MSFC) reports on behalf of the Fermi GBM Team:
���The Fermi Gamma-ray Burst Monitor (GBM) trigger 220112832/663710289
at 19:58:04.04 UT on 12 January 2022, tentatively classified as a GRB,
is in fact not due to a GRB. This trigger is due to SGR 1935+2154.
Fermi-GBM has triggered on 29 bursts from the direction of SGR J1935+2154
since December 24th 2021, some of which may have been misclassified as GRBs.
This list at the time of writing (including the most recent one) is:
Date and Time in UTC Fermi MET (s)
2022-01-12T19:58:04.04 663710289
2022-01-12T08:39:25.34 663669570
2022-01-12T05:42:51.54 663658976
2022-01-12T04:31:20.07 663654685
2022-01-12T02:19:22.23 663646767
2022-01-12T02:05:58.27 663645963
2022-01-12T01:03:46.83 663642231
2022-01-11T21:54:01.18 663630846
2022-01-11T18:21:07.76 663618072
2022-01-11T17:05:55.66 663613560
2022-01-11T08:58:35.36 663584320
2022-01-11T07:48:21.49 663580106
2022-01-11T05:42:12.27 663572537
2022-01-10T15:55:38.32 663522943
2022-01-10T04:31:43.13 663481908
2022-01-10T02:57:16.80 663476241
2022-01-09T12:57:21.98 663425846
2022-01-09T09:28:12.79 663413297
2022-01-09T07:39:10.69 663406755
2022-01-09T04:57:16.14 663397041
2022-01-08T14:41:46.89 663345711
2022-01-06T02:36:14.05 663129379
2022-01-05T07:06:40.74 663059205
2022-01-05T06:01:31.43 663055296
2022-01-04T04:32:11.17 662963536
2021-12-29T16:41:26.20 662488891
2021-12-26T12:55:09.72 662216114
2021-12-25T22:22:20.14 662163745
2021-12-24T03:42:34.36 662010159
Fermi-GBM will not report on future triggers from this source during its current outbursting phase.
We encourage multi-wavelength observations to follow-up this most recent activation.
For Fermi GBM data and info, please visit the official Fermi GBM Support Page:
https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/���