SPI ACS Triggers for December 2011

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Trigger ID / Time Type Origin Sigma Duration [s] Max Count Comment Details
2011-12-31 14:55:51   Undefined AUTO 9.1237   5548 same as previous
2011-12-31 14:55:50
IGRACS 111231.62210 		Confirmed GRB AUTO 9.0652 5 5548 Also detected by Fermi/GBM.
2011-12-31 13:41:58
IGRACS 111231.57081 		Possible GRB AUTO 9.1979 30 5582 Possible GRB, multiple peaks.
2011-12-31 13:41:54   Possible GRB AUTO 6.8162   5582 the same
2011-12-31 06:18:07   Short Spike AUTO 9.3350   5800  
2011-12-29 22:37:52   Confirmed GRB OFFLINE -1.0000   -1 GRB 111229A detected by Swift/BAT (Lien et al. 201
2011-12-29 19:37:33   Short Spike AUTO 10.7180   5968  
2011-12-29 01:15:01   Short Spike AUTO 8.9774   5656  
2011-12-28 15:45:34   Undefined AUTO 9.2191   5882 The same.
2011-12-28 15:45:34
IGRACS 111228.65664 		Confirmed GRB AUTO 10.2823 60 5882 GRB111228(B?), also detected by Swift/BAT and Ferm
2011-12-28 15:44:00   Undefined OFFLINE -1.0000   -1  
2011-12-28 10:52:50   Possible GRB OFFLINE -1.0000   -1 Possible GRB, detected by SuperAGILE and Fermi/GBM
2011-12-28 00:09:54   Short Spike AUTO 9.2032   5774  
2011-12-26 12:59:48   Short Spike AUTO 6.1692   5820  
2011-12-25 03:50:37   Confirmed GRB OFFLINE -1.0000 20 -1 GRB 111225A detected by Swift/BAT (Siegel et al. 2
2011-12-23 12:22:56
IGRACS 111223.51592 		Confirmed GRB AUTO 12.0987 0.1 5844 Also detected by Suzaku/WAM.
2011-12-22 14:51:54
IGRACS 111222.61937 		Confirmed GRB AUTO 37.5284 0.5 15146 GRB111222A, also detected by Fermi/GBM (Rau & Meeg
2011-12-22 14:51:53
IGRACS 111222.61936 		Confirmed GRB OFFLINE -1.0000 0.5 -1 Improved timing. Same as the next one.
2011-12-22 14:51:52   Undefined AUTO 19.8263   15146  
2011-12-21 17:43:30
IGRACS 111221.73854 		Confirmed GRB OFFLINE -1.0000 1 -1 Detected by Konus-Wind, Suzaku/WAM, Fermi/GBM.
2011-12-20 11:40:28   Undefined AUTO 10.2352   8882 the same
2011-12-20 11:40:25
IGRACS 111220.48640 		Confirmed GRB AUTO 9.5146 25 8882 Also detected by Fermi/FBM.
2011-12-19 13:05:34
IGRACS 111219.54553 		Possible GRB AUTO 6.2035 50 5672 Possible GRB or a solar activity.
2011-12-17 04:45:33   Short Spike AUTO 6.3890 0.1 5784  
2011-12-16 21:03:36   Short Spike AUTO 6.2493 0.1 5834  
2011-12-16 09:20:49
IGRACS 111216.38945 		Possible GRB AUTO 6.1150 60 5762 Also detected by Fermi/GBM
2011-12-15 20:28:06   Possible GRB AUTO 16.1557 60 8702 same as previous trigger
2011-12-15 20:28:04 Confirmed GRB AUTO 9.3030 60 8702 possible bright GRB 111215B. Strong multipeak stru
2011-12-15 20:28:00   Confirmed GRB OFFLINE -1.0000 60 -1 Improved timing.
2011-12-15 14:04:08   Undefined OFFLINE -1.0000   -1 Detected by Swift/BAT, not visible in the SPI-ACS.
2011-12-13 13:09:34   Possible GRB AUTO 6.6969 5 5956 Or closely grouped shorts spikes.
2011-12-12 21:34:04 Possible GRB AUTO 6.4310 10 7428 possible GRB 111212B. Two peaks, one at T0, the se
2011-12-11 22:17:17   Confirmed GRB AUTO 9.4796 15 5704 same as previous trigger.
2011-12-11 22:17:16 Confirmed GRB AUTO 9.7120 15 5704 GRB 111211A, also detected by SuperAGILE (Lazzarot
2011-12-11 20:44:20   Short Spike AUTO 6.1992 0.1 5572  
2011-12-11 17:29:29   Short Spike AUTO 13.0733   6214  
2011-12-10 17:15:43 Possible GRB AUTO 9.0754 25 5938 possible GRB 111210C.
2011-12-10 14:37:03 Confirmed GRB OFFLINE -1.0000 0.5 -1 GRB 111210A, detected by Swift/BAT (GCN). A hint o
2011-12-10 08:37:37   Possible GRB AUTO 10.1725 70 5920 same as previous trigger
2011-12-10 08:37:35 Possible GRB AUTO 9.2257 70 5920 possible GRB 111210B. Multipeak structure.
2011-12-10 04:52:36 Possible GRB AUTO 6.2062 4 5606 possible GRB 111210A.
2011-12-08 19:44:52   Short Spike AUTO 7.1427   5658  
2011-12-08 15:41:30   Short Spike AUTO 6.1930   5548  
2011-12-08 08:28:10
IGRACS 111208.35289 		Confirmed GRB OFFLINE -1.0000 20 -1 GRB111208A, also detected by Fermi/GBM and Swift/B
2011-12-08 03:54:42 Short Spike AUTO 6.1210 0.5 7080 possible short GRB 111208A.
2011-12-07 23:29:21   Short Spike AUTO 6.1200 0.1 5682  
2011-12-07 18:37:35   Short Spike AUTO 11.4835   6198  
2011-12-05 13:10:50   Possible GRB AUTO 18.6583   10346 same as previous
2011-12-05 13:10:49
IGRACS 111205.54917 		Confirmed GRB AUTO 9.9905 20 10346 Very intense long GRB111205A
2011-12-05 13:10:49   Confirmed GRB OFFLINE -1.0000 21 -1 Same as the next one, improved timing
2011-12-04 13:37:28   Confirmed GRB OFFLINE -1.0000 80 -1 GRB 111204A detected by Swift/BAT (Sonbas et al. 2

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