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Swift GRB Stats

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By Observatory:

Swift GRBs 977
INTEGRAL GRBs 48
AGILE GRBs 16
Fermi GRBs 35
Maxi GRBs 6
IPN GRBs 12
iPTF GRBs 1
HETE GRBs 5
Total GRBs 1100

Swift GRB Stats:

Swift GRBs 977
BAT T90 ≤ 2 secs 86
BAT T90 > 2 secs 847
BAT T90 Unknown 44
XRT Observations 847
XRT Detections 773
XRT Non-Detections (slew < 300 secs) 30
UVOT Observations 832
UVOT Detections 303
UVOT Detections with Ground Detections 283
UVOT Detections or Ground Detections 546
XRT and UVOT Detections 301
Other Observatory Detections 661
Ground Detections 526
Radio Detections 79
With Redshifts 306

Swift GRBs (Total Observed):

2015: 52 (62)
2014: 95 (111)
2013: 96 (110)
2012: 92 (97)
2011: 81 (93)
2010: 84 (92)
2009: 89 (108)
2008: 103 (120)
2007: 86 (95)
2006: 102 (106)
2005: 88 (97)
2004: 9 (9)