At 18:58:12 Swift-BAT rate-triggered on GRB 130216B (BAT trigger 548918) (Cummings GCN Circ. 14226). Table 1 contains the best reported positions from Swift.
Table 2 is a summary of GCN Circulars about this GRB from observatories other than Swift.
Standard analysis products for this burst are available at http://gcn.gsfc.nasa.gov/swift_gnd_ana.html.
As reported by Cummings et al. (GCN Circ. 14232), the BAT ground- calculated position is RA, Dec 58.866, +2.036, which is: RA (J2000) 03h 55m 27.9s Dec (J2000) 02d 02m 10s with an uncertainty of 1.5 arcmin, (radius, sys+stat, 90% containment). The partial coding was 11%.
The mask-weighted light curve (Figure 1) shows two peaks, the smaller from T+0 to T+2 and the larger from T+2 to T+4. Each is symmetrical in time. T90(15-350 keV) is 3.7 ± 0.5 s (estimated error including systematics).
The time-averaged spectrum from T+0 to T+4 s is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.77 ± 0.08. The fluence in the 15-150 keV band is 1.3 ± 0.3 x 10-6 erg cm-2. The 1-s peak photon flux measured from T+2.5 s in the 15-150 keV band is 7.4 ± 0.6 ph cm-2 s-1. All the quoted errors are at the 90% confidence level.
The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/548918/BA/.
XRT results are not available.
UVOT results are not available.
Figure 1. The BAT light curve is not available.
RA | Dec | Error | Note | Reference |
---|---|---|---|---|
03h55m23.98s | +02o03' 06.6" | 8.6" | XRT | D'Avanzo et al. GCN Circ. 14242 |
03h55m27.9s | +02o02' 10" | 1.5' | BAT-refined | Cummings et al. GCN Circ. 14232 |
Band | Authors | GCN Circ. | Subject | Observatory | Notes |
---|---|---|---|---|---|
Optical | Perley and Cenko | 14231 | P200 NIR Observations | Palomar 200-inch | |
Optical | Gorbovskoy et al. | 14239 | MASTER-Net early observation | MASTER | |
Gamma-ray | Chaplin | 14235 | Fermi GBM observation | Fermi GBM | detection |
Gamma-ray | Yasuda et al. | 14249 | Suzaku WAM observation of the prompt emission | Suzaku WAM | light curve |