S.D. Barthelmy (GSFC), A. Cholden-Brown (PSU) and J.D. Gropp (PSU) for the Swift team
At 10:40:40 UT on 2017-05-24, the Swift Burst Alert Telescope (BAT) triggered on GRB 170524B (trigger=754265) (Barthelmy et al. GCN Circ. 21142). However, on-board analysis was truncated by a pre-planned slew to a scheduled target. 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.
BAT refined results are not available.
XRT refined results are not available.
Analysis of the UVOT data was reported by Gropp et al. (GCN Circ. 21168).
Table 3 gives preliminary
magnitudes using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc., 1358, 373).
No correction has been made for the expected extinction in the Milky Way
corresponding to a reddening of
Figure 1. The BAT light curve is not available.
Figure 2. The XRT light curve.
Any data from a crosshatched region are not included in the fit.
RA (J2000) | Dec (J2000) | Error | Note | Reference |
---|---|---|---|---|
0 |
-17°04'58.7" | 0.4" | UVOT-refined | Gropp et al. GCN Circ. 21168 |
0 |
-17°04'57.8" | 2.3" | XRT-final | UKSSDC |
0 |
-17°04'58.2" | 2.30" | XRT | GCN Circ. 21150 |
0 |
-17°05'11" | 3' | BAT-initial | Barthelmy et al. GCN Circ. 21142 |
Band | Authors | GCN Circ. | Subject | Observatory | Notes |
---|---|---|---|---|---|
Optical | Podesta et al. | 21147 | MASTER-OAFA observations | MASTER | upper limits |
Gamma-ray | Frederiks et al. | 21148 | Konus-Wind observation | Konus-Wind |
Filter | Exp(s) | Mag | ||
---|---|---|---|---|
white | 120431 | 126833 | 1297 | 19.89± 0.08 |
white | 274703 | 286595 | 2027 | 21.11± 0.23 |
Table 3. UVOT observations reported by Gropp et al. (GCN Circ. 21168). The start and stop times of the exposures are given in seconds since the BAT trigger. The preliminary 3-σ upper limits are given. No correction has been made for extinction in the Milky Way.
May 31, 2017