GRB140302A

This page lists all entries on GRB140302A in GRBweb

Summary Fermi GBM IPN Swift GCN 15901 GCN 15902 GCN 15903 GCN 15907 GCN 15908 GCN 15909 GCN 15910 GCN 15911 GCN 15912 GCN 15965 GCN 16060

Summary table
Variable Value Source
GRB_name_Fermi GRB140302342
T0 8:12:58 UTC GCN_circulars,Swift Det
ra 253.8587° Swift
decl -12.8782° Swift
pos_error 2.98e-04° Swift
T90 67.584 s Fermi_GBM
T90_error 5.655 s Fermi_GBM
T90_start 8:12:59.144 UTC Fermi_GBM
fluence 5.96e-06 erg/cm² Fermi_GBM
fluence_error 4.45e-08 erg/cm² Fermi_GBM
T100 87.5 s
GBM_located False
mjd 56718.34233796296 GCN_circulars,Swift Det
Fermi GBM table
GRB_name_Fermi GRB140302342
trigger_name bn140302342
ra 253.8592°
decl -12.8783°
pos_error 2.74e+00°
datum 2014-03-02
t_trigger 8:12:58.888 UTC
T90 67.584 s
T90_error 5.655 s
T90_start 8:12:59.144 UTC
fluence 5.96e-06 erg/cm²
fluence_error 4.45e-08 erg/cm²
flux_1024 3.53e+00 erg/cm²/s
flux_1024_error 2.67e-01 erg/cm²/s
flux_1024_time -1.28e-01 erg/cm²/s
flux_64 5.33e+00 erg/cm²/s
flux_64_error 1.05e+00 erg/cm²/s
IPN table
GRB_name GRB140302A
ra 253.8417°
decl -12.8667°
pos_error 5.00e-02°
Swift table
GRB_name GRB140302A
t_trigger 8:12:58 UTC
ra 253.8587°
decl -12.8782°
pos_error 2.98e-04°
T90 87.5 s
fluence 2.70e-06 erg/cm²
GCN 15901 table
GRB_name GRB140302A
GCN_number 15901
Detection_method Swift Det
t_trigger 8:12:58 UTC
ra 253.8420°
decl -12.8650°
Circular_text TITLE: GCN CIRCULAR NUMBER: 15901 SUBJECT: GRB 140302A: Swift detection of a burst DATE: 14/03/02 08:26:25 GMT FROM: Scott Barthelmy at NASA/GSFC C. Pagani (U Leicester), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), V. D'Elia (ASDC), C. B. Markwardt (NASA/GSFC), A. Maselli (INAF-IASFPA), K. L. Page (U Leicester), M. H. Siegel (PSU) and R. L. C. Starling (U Leicester) report on behalf of the Swift Team: At 08:12:58 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 140302A (trigger=589685). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 253.842, -12.865, which is RA(J2000) = 16h 55m 22s Dec(J2000) = -12d 51' 53" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows several peaks with a total duration of about 35 sec. The peak count rate was ~5300 counts/sec (15-350 keV), at ~0 sec after the trigger. The XRT began observing the field at 08:14:10.9 UT, 72.2 seconds after the BAT trigger. Using promptly downlinked data we find a bright, uncatalogued X-ray source located at RA, Dec 253.85859, -12.87891 which is equivalent to: RA(J2000) = 16h 55m 26.06s Dec(J2000) = -12d 52' 44.1" with an uncertainty of 4.1 arcseconds (radius, 90% containment). This location is 76 arcseconds from the BAT onboard position, within the BAT error circle. This position may be improved as more data are received; the latest position is available at http://www.swift.ac.uk/sper. We cannot determine whether the source is fading at the present time. A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 1.46 x 10^21 cm^-2 (Kalberla et al. 2005). The initial flux in the 2.5 s image was 1.49e-09 erg cm^-2 s^-1 (0.2-10 keV). UVOT took a finding chart exposure of 150 seconds with the White filter starting 80 seconds after the BAT trigger. No credible afterglow candidate has been found in the initial data products. The 2.7'x2.7' sub-image covers 100% of the XRT error circle. The typical 3-sigma upper limit has been about 19.6 mag. The 8'x8' region for the list of sources generated on-board covers 100% of the XRT error circle. The list of sources is typically complete to about 18 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.52. Burst Advocate for this burst is C. Pagani (cp232 AT star.le.ac.uk). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)
GCN 15902 table
GRB_name GRB140302A
GCN_number 15902
Detection_method Swift-XRT Other
ra 253.8593°
decl -12.8788°
Circular_text TITLE: GCN CIRCULAR NUMBER: 15902 SUBJECT: GRB 140302A: Prompt enhanced Swift-XRT position DATE: 14/03/02 08:38:49 GMT FROM: Phil Evans at U of Leicester P.A. Evans (U. Leicester) reports on behalf of the Swift-XRT team: Using promptly downlinked XRT event data for GRB 140302A, we find an enhanced XRT position of the afterglow: RA, Dec: 253.8593, -12.8788 which is equivalent to: RA (J2000) = 16 55 26.23 Dec (J2000) = -12 52 43.7 with an uncertainty of 2.6 arcseconds (radius, 90% confidence). Analysis of the promptly available data is online at http://www.swift.ac.uk/sper/589685. Position enhancement is is described by Goad et al. (2007, A&A, 476, 1401) and Evans et al. (2009, MNRAS, 397, 1177). This circular is an official product of the Swift-XRT team.
GCN 15903 table
GRB_name GRB140302A
GCN_number 15903
Detection_method GROND
ra 253.8596°
decl -12.8784°
Circular_text TITLE: GCN CIRCULAR NUMBER: 15903 SUBJECT: GRB 140302A: GROND afterglow candidate DATE: 14/03/02 11:33:18 GMT FROM: Sebastian Schmidl at TLS Tautenburg J. Elliott (MPE Garching), S. Schmidl (TLS Tautenburg), and J. Greiner (MPE Garching) report on behalf of the GROND team: We observed the field of GRB 140302A (Swift trigger 589685; Pagani et al., GCN #15901) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2m MPG telescope at ESO La Silla Observatory (Chile). Observations started at 08:21:12 UT on the 2nd March 2014, 8.2 min after the GRB trigger. They were performed at an average seeing of 1.5" and at an average airmass of 1.2. We find a faint point source inside the enhanced XRT error circle given in Evans et al. (GCN #15902) RA (J2000) = 16:55:26.30 DEC (J2000) = -12:52:42.2 with an uncertainty of 0.5" in each coordinate. Based on a total exposure of 1936 sec in r', at a mid-time of 0.65 hrs after the burst, we measure the following preliminary magnitude (in AB): r = 23.7 +/- 0.2 mag. No statement about fading can be made at this stage. Given magnitude is calibrated against GROND zeropoint and is not corrected for the expected Galactic foreground extinction corresponding to a reddening of E_(B-V) = 0.52 mag in the direction of the burst (Schlegel et al. 1998).
GCN 15907 table
GRB_name GRB140302A
GCN_number 15907
Detection_method Swift-XRT Det
ra 253.8587°
decl -12.8782°
Circular_text TITLE: GCN CIRCULAR NUMBER: 15907 SUBJECT: GRB 140302A: Enhanced Swift-XRT position DATE: 14/03/02 19:36:02 GMT FROM: Phil Evans at U of Leicester J.P. Osborne, A.P. Beardmore, P.A. Evans and M.R. Goad (U. Leicester) report on behalf of the Swift-XRT team. Using 478 s of XRT Photon Counting mode data and 1 UVOT images for GRB 140302A, we find an astrometrically corrected X-ray position (using the XRT-UVOT alignment and matching UVOT field sources to the USNO-B1 catalogue): RA, Dec = 253.85872, -12.87823 which is equivalent to: RA (J2000): 16h 55m 26.09s Dec (J2000): -12d 52' 41.6" with an uncertainty of 2.3 arcsec (radius, 90% confidence). This position may be improved as more data are received. The latest position can be viewed at http://www.swift.ac.uk/xrt_positions. Position enhancement is described by Goad et al. (2007, A&A, 476, 1401) and Evans et al. (2009, MNRAS, 397, 1177). This circular was automatically generated, and is an official product of the Swift-XRT team.
GCN 15908 table
GRB_name GRB140302A
GCN_number 15908
Detection_method Swift-BAT Det
ra 253.8620°
decl -12.8750°
Circular_text TITLE: GCN CIRCULAR NUMBER: 15908 SUBJECT: GRB 140302A: Swift-BAT refined analysis DATE: 14/03/02 20:27:28 GMT FROM: Scott Barthelmy at NASA/GSFC S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/UMBC), C. B. Markwardt (GSFC), C. Pagani (U Leicester), D. M. Palmer (LANL), T. Sakamoto (AGU), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU) (i.e. the Swift-BAT team): Using the data set from T-240 to T+303 sec from recent telemetry downlinks, we report further analysis of BAT GRB 140302A (trigger #589685) (Pagani, et al., GCN Circ. 15901). The BAT ground-calculated position is RA, Dec = 253.862, -12.875 deg, which is RA(J2000) = 16h 55m 26.8s Dec(J2000) = -12d 52' 29.8" with an uncertainty of 1.1 arcmin, (radius, sys+stat, 90% containment). The partial coding was 82%. The mask-weighted light curve shows a sharp rise starting at ~T-0.1 sec, peaking at ~T+0.2 sec, and a roughly exponential decay with several small peaks riding on top, finally returning to baseline at ~T+190 sec. T90 (15-350 keV) is 87.5 +- 11.4 sec (estimated error including systematics). The time-averaged spectrum from T-0.09 to T+106.25 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.09 +- 0.09. The fluence in the 15-150 keV band is 2.7 +- 0.1 x 10^-6 erg/cm2. The 1-sec peak photon flux measured from T-0.10 sec in the 15-150 keV band is 1.7 +- 0.2 ph/cm2/sec. 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/589685/BA/
GCN 15909 table
GRB_name GRB140302A
GCN_number 15909
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 15909 SUBJECT: GRB 140302A: Swift-XRT refined Analysis DATE: 14/03/02 20:30:15 GMT FROM: Phil Evans at U of Leicester J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), V. D'Elia (ASDC), A. Maselli (INAF-IASFPA), A. Melandri (INAF-OAB), D.N. Burrows (PSU), J.A. Kennea (PSU), V. Mangano (PSU) and C. Pagani report on behalf of the Swift-XRT team: We have analysed 6.0 ks of XRT data for GRB 140302A (Pagani et al. GCN Circ. 15901), from 78 s to 23.2 ks after the BAT trigger. The data comprise 136 s in Windowed Timing (WT) mode with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Osborne et al. (GCN Circ. 15902). The light curve can be modelled with an initial power-law decay with an index of alpha=1.62 (+0.22, -0.23), followed by a break at T+183 s to an alpha of 4.0 (+/-0.4). A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.08 (+0.16, -0.15). The best-fitting absorption column is 3.1 (+1.0, -0.9) x 10^21 cm^-2, in excess of the Galactic value of 1.5 x 10^21 cm^-2 (Kalberla et al. 2005). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 6.8 x 10^-11 (7.7 x 10^-11) erg cm^-2 count^-1. A summary of the WT-mode spectrum is thus: Total column: 3.1 (+1.0, -0.9) x 10^21 cm^-2 Galactic foreground: 1.5 x 10^21 cm^-2 Excess significance: 3.2 sigma Photon index: 1.08 (+0.16, -0.15) If the light curve continues to decay with a power-law decay index of 4.0, the count rate at T+24 hours will be 1.9 x 10^-10 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 1.3 x 10^-20 (1.4 x 10^-20) erg cm^-2 s^-1. The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00589685. This circular is an official product of the Swift-XRT team.
GCN 15910 table
GRB_name GRB140302A
GCN_number 15910
Detection_method Fermi GBM Det
t_trigger 8:12:58.890 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 15910 SUBJECT: GRB140302A: Fermi GBM detection DATE: 14/03/02 21:04:59 GMT FROM: Gerard Fitzpatrick at UCD G. Fitzpatrick (UCD) reports on behalf of the Fermi GBM Team: At 08:12:58.89 UT on 02 March 2014, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 140302A (trigger 415440781/140302342), which was also detected by Swift (Pagani et al., GCN 15901). The GBM on-ground location is consistent with the Swift/XRT position (Pagani et al., GCN 15901). The GBM light curve consists of a single peak with a duration (T90) of about 64 s (50-300 keV). The time-averaged spectrum from T0 s to T0+64 s is adequately fit by a power law function with an exponential high-energy cutoff. The power law index is -0.49 +/- 0.1 and the cutoff energy, parameterized as Epeak, is 462 +/- 53 keV. The event fluence (10-1000 keV) in this time interval is (1 +/- 0.05)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0 s in the 10-1000 keV band is 3 +/- 0.2 ph/s/cm^2. The main emission is preceded by an apparent precursor event with an approximate duration of 20 s. This event has been tentatively associated with the GRB based on the location derived by GBM. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog.
GCN 15911 table
GRB_name GRB140302A
GCN_number 15911
Detection_method MITSuME
Circular_text TITLE: GCN CIRCULAR NUMBER: 15911 SUBJECT: GRB 140302A: MITSuME Okayama upper limits DATE: 14/03/03 01:15:14 GMT FROM: Daisuke Kuroda at OAO/NAOJ D. Kuroda, K. Yanagisawa, Y. Shimizu, H. Toda (OAO, NAOJ), S. Nagayama (NAOJ), M. Yoshida (Hiroshima), K. Ohta (Kyoto) and N. Kawai(Tokyo Tech) report on behalf of MITSuME collaboration: We observed the field of GRB 140302A (Pagani et al., GCNC 15901) with the optical three color (g', Rc and Ic) CCD camera attached to the MITSuME 50cm telescope of Okayama Astrophysical Observatory. The observation started on 2014-03-02 19:19:00 UT (~11.1 h after the burst). We could not detect the previously reported afterglow (Elliot et al., GCNC 15903) in all the three bands. Three sigma upper limits of the OT are listed below. We used GSC 2.3 catalog for flux calibration. #T0+[day] MID-UT T-EXP[sec] g' Rc Ic ----------------------------------------------------- 0.48800 19:55:41 2400.0 >19.6 >19.4 >18.7 ----------------------------------------------------- T0+ : Elapsed time after the burst [day] T-EXP: Total Exposure time [sec]
GCN 15912 table
GRB_name GRB140302A
GCN_number 15912
Detection_method Swift-UVOT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 15912 SUBJECT: GRB 140302A: Swift/UVOT Upper Limits DATE: 14/03/03 16:24:29 GMT FROM: Mike Siegel at PSU/Swift MOC M. H. Siegel (PSU) and C. Pagani (U Leicester) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 140302A 80 s after the BAT trigger (Pagani et al., GCN Circ. 15901). No optical afterglow consistent with the optical position (Elliott et al. GCN Circ. 15903) is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the first finding chart (FC) exposure and subsequent exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag white (fc) 80 230 147 >20.5 white 80 593 167 >20.6 white 10575 11481 590 >21.1 v 624 643 19 >18.3 v 16940 17847 590 >19.4 b 549 569 19 >19.3 b 9662 10569 590 >20.5 u (fc) 293 543 246 >19.7 uvw1 672 692 19 >19.0 uvm2 17853 17993 137 >18.9 uvw2 11487 12232 732 >20.2 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.52 in the direction of the burst (Schlegel et al. 1998).
GCN 15965 table
GRB_name GRB140302A
GCN_number 15965
Detection_method GROND
Circular_text TITLE: GCN CIRCULAR NUMBER: 15965 SUBJECT: GRB 140302A: GROND confirmation of the afterglow DATE: 14/03/12 14:08:14 GMT FROM: Jonny Elliott at MPE/GROND J. Elliott (MPE Garching), S. Schmidl (TLS Tautenburg), J.Greiner, J. F. Graham, M. Tanga (all MPE Garching) report on behalf of the GROND team: We re-observed the field of GRB 140302A (Swift trigger 589685; Pagani et al., GCN #15901) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2 m MPG telescope at La Silla Observatory (Chile). Observations started at 07:18 UT on 4th March 2014, 2 days after the GRB trigger. They were performed at an average seeing of 1.1" and at an average airmass of 1.3. We no longer detect the source noted in our previous observations (Elliott et al.; GCN #15903) that had a magnitude of r' = 23.7 +/- 0.2 mag. For a total exposure of 1.2 hours we obtain an upper limit (AB) of r' > 25.2 mag and confirm this as the afterglow of GRB 140302A. The given limit is derived based on calibrating the image against GROND zeropoints and is not corrected for the Galactic foreground extinction corresponding to a reddening of E(B-V)= 0.52 mag in the direction of the burst (Schlegel et al. 1998).
GCN 16060 table
GRB_name GRB140302A
GCN_number 16060
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 16060 SUBJECT: GRB 140302A: TAROT La Silla observatory optical observations DATE: 14/03/31 18:10:50 GMT FROM: Alain Klotz at IRAP-CNRS-OMP Klotz A., Turpin D. (IRAP-CNRS-OMP), Boer M., Gendre B., Siellez K., Dereli H., Bardho O. (UNS-CNRS-OCA), Atteia J.L. (IRAP-CNRS-OMP) report: We imaged the field of GRB 140302A detected by SWIFT (trigger 589685) with the TAROT robotic telescope (D=25cm) located at the European Southern Observatory, La Silla observatory, Chile. The observations started 36.5s after the GRB trigger (14.3s after the notice). The elevation of the field increased from 48 degrees above horizon and weather conditions were excellent. The first image is trailed with a duration of 60.0s (see the description in Klotz et al., 2006, A&A 451, L39). We do not detect any OT with a limiting magnitude of: t0+36.5s to t0+96.5s : Rlim = 15.9 The second image is 60.0s exposure in tracking mode. No afterglow candidate is seen: t0+140s to t0+200s : Rlim = 19.0 The next images does not show the candidate identified by Elliott et al. (GCNC 15903) at R=23.7 8.2 min after the trigger. Magnitudes were estimated with the nearby USNO-B1 stars and are not corrected for galactic dust extinction.