SPI ACS Triggers for February 2021

Note: Many false triggers on 2021-02-22, due tounusual radiation belt conditions incident report
The incident is ongoing, we are monitoring the conditions closely, as they are changing.
Some false triggers happened in the following days, but we have taken measures to reduce their number

Up to ACS triggers overview page

for the most recent triggers the HEAVENS data is not yet available, please use the link in the rightmost column

Trigger ID / Time Type Origin Sigma Duration [s] Max Count Comment Details
2021-02-28 22:46:58     AUTO 9.0344   7268  
2021-02-28 20:27:59     AUTO 9.1349   7214  
2021-02-28 15:25:29
IGRACS 210228.64269 		Possible GRB AUTO 6.2250 0.3 7352 Possible short GRB210228
2021-02-28 06:38:31
IGRACS 210228.27674 		  Confirmed GRB ASSOC 7.77 ?   FAP 0.000482 with Fermi/GBM GRB, t0 3.44
2021-02-28 01:22:53
IGRACS 210228.05755 		  Confirmed GRB ASSOC 14.5 ?   FAP 8.62e-05 with Fermi/GBM GRB, t0 0.36
2021-02-27 02:45:10
IGRACS 210227.11469 		Possible GRB AUTO 9.2512 20 7132 Possible GRB210227
2021-02-26 04:43:57
IGRACS 210226.19718 		  Confirmed GRB ASSOC 3.74 ?   FAP 0.00455 with GRB210226A, t0 -0.546
2021-02-23 23:14:24
IGRACS 210223.96833 		Possible GRB AUTO 9.9450 20 7018 Possible GRB210223
2021-02-21 11:02:33
IGRACS 210221.46010 		  Confirmed GRB ASSOC 3.46 ?   FAP 0.00876 with Fermi/GBM GRB, t0 -0.844
2021-02-16 22:20:39
IGRACS 210216.93100 		  Confirmed GRB ASSOC 4.77 ?   FAP 0.00174 with Fermi/GBM GRB, t0 0.0353
2021-02-16 08:22:27   Possible GRB AUTO 10.1998   7022  
2021-02-13 18:42:11
IGRACS 210213.77929 		Confirmed GRB AUTO 9.2510 2 6790 GRB210213. Note RANDOM proximity of IceCube GOLD h
2021-02-13 17:47:14
IGRACS 210213.74113 		  Confirmed GRB ASSOC 8.16 ?   FAP 0.000406 with Fermi/GBM GRB, t0 1.6
2021-02-13 17:47:14
IGRACS 210213.74113 		  Confirmed GRB ASSOC 8.16 ?   FAP 0.000406 with GRB210213A, t0 1.76
2021-02-13 06:52:28   Confirmed GRB AUTO 11.1294   7198 GRB 210213B
2021-02-11 08:43:18
IGRACS 210211.36340 		  Confirmed GRB ASSOC 5.62 ?   FAP 0.00111 with Fermi/GBM GRB, t0 2.06
2021-02-11 08:43:18
IGRACS 210211.36340 		  Confirmed GRB ASSOC 5.73 ?   FAP 0.00418 with GRB210211A, t0 4.97
2021-02-10 17:07:07
IGRACS 210210.71327 		  Confirmed GRB ASSOC 3.61 ?   FAP 0.00677 with Fermi/GBM GRB, t0 -0.885
2021-02-10 17:07:07
IGRACS 210210.71327 		  Confirmed GRB ASSOC 3.65 ?   FAP 0.00536 with GRB210210B, t0 -0.125
2021-02-09 21:39:44
IGRACS 210209.90259 		  Confirmed GRB ASSOC 4.3 ?   FAP 0.00376 with GRB210209A, t0 4.69
2021-02-07 21:52:08
IGRACS 210207.91120 		  Confirmed GRB ASSOC 16.8 ?   FAP 0.00414 with GRB210207B, t0 43.2
2021-02-07 14:27:58
IGRACS 210207.60275 		  Confirmed GRB ASSOC 10.7 ?   FAP 0.00324 with Fermi/GBM GRB, t0 6.62
2021-02-07 14:27:58
IGRACS 210207.60275 		  Confirmed GRB ASSOC 10.7 ?   FAP 0.0037 with GRB210207A, t0 7.6
2021-02-05 11:11:17
IGRACS 210205.46616 		  Confirmed GRB ASSOC 3.66 ?   FAP 0.00523 with GRB210205A, t0 0.875
2021-02-04 18:38:59
IGRACS 210204.77707 		  Confirmed GRB ASSOC 4.68 ?   FAP 0.00185 with Fermi/GBM GRB, t0 1.02
2021-02-04 18:38:59
IGRACS 210204.77707 		  Confirmed GRB ASSOC 4.65 ?   FAP 0.00188 with GRB210204B, t0 1.49
2021-02-02 20:10:31
IGRACS 210202.84063 		  Confirmed GRB ASSOC 15.6 ?   FAP 0.000135 with Fermi/GBM GRB, t0 2.09
2021-02-02 20:10:31
IGRACS 210202.84063 		  Confirmed GRB ASSOC 15.6 ?   FAP 0.000154 with GRB210202A, t0 2.39
2021-02-01 13:36:22
IGRACS 210201.56692 		  Confirmed GRB ASSOC 5.21 ?   FAP 0.00576 with Fermi/GBM GRB, t0 -14

Show hidden triggers


For questions please contact ISDC IBAS team