GRB100302A

This page lists all entries on GRB100302A in GRBweb

Summary IPN Swift GCN 10458 GCN 10459 GCN 10460 GCN 10462 GCN 10463 GCN 10464 GCN 10465 GCN 10466 GCN 10467 GCN 10468 GCN 10469 GCN 10480

Summary table
Variable Value Source
T0 19:53:06 UTC GCN_circulars,Swift Det
ra 195.5161° Swift
decl 74.5901° Swift
pos_error 1.94e-04° Swift
T90 17.9 s Swift
T90_start 19:53:06 UTC Swift
fluence 3.10e-07 erg/cm² Swift
redshift 4.8130 GCN_circulars,Other
T100 17.9 s
GBM_located False
mjd 55257.82854166667 GCN_circulars,Swift Det
IPN table
GRB_name GRB100302A
ra 195.3458°
decl 74.5833°
pos_error 5.00e-02°
redshift 4.8130
Swift table
GRB_name GRB100302A
t_trigger 19:53:06 UTC
ra 195.5161°
decl 74.5901°
pos_error 1.94e-04°
T90 17.9 s
fluence 3.10e-07 erg/cm²
redshift 4.8130
GCN 10458 table
GRB_name GRB100302A
GCN_number 10458
Detection_method Swift Det
t_trigger 19:53:06 UTC
ra 195.3440°
decl 74.5810°
Circular_text TITLE: GCN CIRCULAR NUMBER: 10458 SUBJECT: GRB 100302A: Swift detection of a burst DATE: 10/03/02 20:14:02 GMT FROM: Jay R. Cummings at NASA/GSFC/Swift J. R. Cummings (NASA/UMBC), A. P. Beardmore (U Leicester), D. N. Burrows (PSU), N. Gehrels (NASA/GSFC), J. M. Gelbord (PSU), O. Godet (U Leicester), D. Grupe (PSU), S. T. Holland (CRESST/USRA/GSFC), S. Immler (CRESST/GSFC/UMD), J. A. Kennea (PSU), R. Margutti (Univ Bicocca&OAB), F. E. Marshall (NASA/GSFC), P. T. O'Brien (U Leicester), M. Perri (ASDC), M. H. Siegel (PSU), M. A. Stark (PSU), E. Troja (NASA/GSFC/ORAU), T. N. Ukwatta (GSFC/GWU) and L. Vetere (PSU) report on behalf of the Swift Team: At 19:53:06 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 100302A trigger=414592). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 195.344, +74.581 which is RA(J2000) = 13h 01m 23s Dec(J2000) = +74d 34' 51" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single broad peak with a duration of about 35 sec, beginning about 40 sec after the trigger time (the beginning of the 64-second interval for this "image trigger"). The peak count rate was ~500 counts/sec (15-350 keV), at ~55 sec after the trigger. The XRT began observing the field at 19:55:11.9 UT, 125.4 seconds after the BAT trigger. Using promptly downlinked data we find a bright, fading, uncatalogued X-ray source with an enhanced position: RA, Dec 195.5146, 74.5895 which is equivalent to: RA(J2000) = 13h 02m 3.50s Dec(J2000) = +74d 35' 22.1" with an uncertainty of 2.3 arcseconds (radius, 90% containment). This location is 166 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. A power-law fit to a spectrum formed from promptly downlinked event data gives a column density consistent with the Galactic value of 1.92e+20 cm^-2 (Kalberla et al. 2005). The initial flux in the 2.5 s image was 1.96e-09 erg cm^-2 s^-1 (0.2-10 keV). UVOT took a finding chart exposure of 150 seconds with the White filter starting 132 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 0.02. Burst Advocate for this burst is J. R. Cummings (jayc AT milkyway.gsfc.nasa.gov). 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 10459 table
GRB_name GRB100302A
GCN_number 10459
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 10459 SUBJECT: GRB 100302A: Skynet/DAO Observations DATE: 10/03/02 22:45:23 GMT FROM: Josh Haislip at U.North Carolina J. Haislip, K. Ivarsen, A. LaCluyze, D. Reichart, R. Egger, A. Foster, J. Moore, A. Oza, M. Schubel, J. Styblova, A. Trotter, J. A. Crain, and M. Nysewander report: Skynet observed the Swift/BAT localization of GRB 100302A (Cummings et al., GCN 10458) with the 16" telescope at the Dolomiti Astronomical Observatory in Italy beginning 2.7 minutes after the trigger (1.3 minutes after notification) in Red, which we have calibrated to R. We do not detect the afterglow (Cummings et al., GCN 10458). Stacking only images that increase the limiting magnitude yields: mean 1-sig. 1-sig. time 3-sig. sys. stat. since lim. cal. cal. cal. trig. tel. exp. fil. mag. stars unc. unc. (m) (# x s) (mag) (mag) 73.3 DAO 28 x 160 Red 20.3 78 USNO B1 0.429 0.000
GCN 10460 table
GRB_name GRB100302A
GCN_number 10460
Detection_method Swift-XRT Det
ra 195.5152°
decl 74.5896°
Circular_text TITLE: GCN CIRCULAR NUMBER: 10460 SUBJECT: GRB 100302A: Enhanced Swift-XRT position DATE: 10/03/02 23:10:26 GMT FROM: Phil Evans at U of Leicester M.R. Goad, J.P. Osborne, A.P. Beardmore and P.A. Evans (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 100302A, 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 = 195.51524, +74.58959 which is equivalent to: RA (J2000): 13h 02m 3.66s Dec (J2000): +74d 35' 22.5" with an uncertainty of 1.9 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 10462 table
GRB_name GRB100302A
GCN_number 10462
Detection_method Swift-BAT Det
ra 195.5040°
decl 74.5680°
Circular_text TITLE: GCN CIRCULAR NUMBER: 10462 SUBJECT: GRB 100302A, Swift-BAT refined analysis DATE: 10/03/03 03:09:06 GMT FROM: Jay R. Cummings at NASA/GSFC/Swift J. R. Cummings (GSFC/UMBC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC/UMD), D. M. Palmer (LANL), A. M. Parsons (GSFC), T. Sakamoto (GSFC/UMBC), G. Sato (ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), T. N. Ukwatta (GWU) (i.e. the Swift-BAT team): Using the data set from T-60 to T+243 sec from the recent telemetry downlink, we report further analysis of BAT GRB 100302A (trigger #414592) (Cummings, et al., GCN Circ. 10458). The BAT ground-calculated position is RA, Dec = 195.504, 74.568 deg which is RA(J2000) = 13h 02m 01.0s Dec(J2000) = +74d 34' 04.0" with an uncertainty of 1.7 arcmin, (radius, sys+stat, 90% containment). The partial coding was 98%. The mask-weighted light curve shows one group of multiple overlapping peaks from T+40 to T+70. T90 (15-350 keV) is 17.9 +- 1.7 sec (estimated error including systematics). The time-averaged spectrum from T+47.6 to T+67.3 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.72 +- 0.19. The fluence in the 15-150 keV band is 3.1 +- 0.4 x 10^-07 erg/cm2. The 1-sec peak photon flux measured from T+63.87 sec in the 15-150 keV band is 0.5 +- 0.1 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/414592/BA/
GCN 10463 table
GRB_name GRB100302A
GCN_number 10463
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 10463 SUBJECT: GRB 100302A: MASTER-Net optical alert observations DATE: 10/03/03 11:31:50 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V.Yurkov, S.Sergienko, D.Varda, Blagoveschensk Educational State University, Blagoveschensk E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov, D.Zemnukhov, M. Kornilov Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.V. Parhomenko, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalozhnih, T.Kopytova, A. Popov Ural State University, Kourovka K.Ivanov, S.Yazev, N.M.Budnev, E.Konstantinov, V.Lenok Irkutsk State University MASTER robotic telescope (MASTER-Net: http://observ.pereplet.ru, 200 mm, FOV=8 square degrees (testing telescope) and Very Wide Field Camera (D=50 mm, 1000 square degrees, 11 Mpx, 36" per pix, mounted on telescope) located at Blagoveschensk was responted to the GRB 100302A (Swift Bat alert, Cummings et al, GCN CIRC 10458) 51 sec after Notice time and 139 s after the GRB time. There is now OT in our images inside Swift XRT error box (Goad et al., GCN CIRC 10460). GRB_time start UT end UT t_exp(s) mlim Coadd? ------------------------------------------------------------------- 139s 19:55:25 19:55:55 30 16.9 no 139s-4046s 19:55:25 21:14:17 4020 18.5 68 The coadded image is available at http://observ.pereplet.ru/images/GRB100302A/GRB_summ.jpg . The message may be cited. mailto: lipunov@sai.msu.ru
GCN 10464 table
GRB_name GRB100302A
GCN_number 10464
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 10464 SUBJECT: GRB 100302A: Optical observations at Crni Vrh DATE: 10/03/03 14:31:32 GMT FROM: Bojan Dintinjana at OCV B. Dintinjana and H. Mikuz on behalf of PIKA observing program at Crni Vrh Observatory. We observed the field of GRB 100302A (Cummings et al., GCN 10458) from Crni Vrh Observatory with a 60 cm robotic telescope, R filter and CCD. Twenty consecutive exposures of 60 second duration were taken in moonlight conditions. First exposure started at 2010-03-02 19:56:20 UT, 194 seconds after the burst (105 seconds after the SWIFT trigger). No optical candidate was detected within the uncertainty radius on single exposures, having R limiting magnitude 18.3, calibrated against the nerby USNO-B R2 magnitude stars. Also we found no optical candidate on 20 sumed R images with total exposure of 1200 seconds and limiting R band magnitude 19.6 (calibrated against the nerby USNO-B R2 magnitude stars).
GCN 10465 table
GRB_name GRB100302A
GCN_number 10465
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 10465 SUBJECT: GRB 100302A: Gemini-N OT confirmation DATE: 10/03/03 15:22:47 GMT FROM: Antonino Cucchiara at PSU A. Cucchiara, D. B. Fox (PSU) report on behalf of a larger collaboration: "On March 3.40 UT we observed the field of GRB 100302A (Cummings et al., GCN 10458) with the Gemini-N telescope and the GMOS spectrograph. In our 300s i'-band acquisition image we clearly identify a source inside the XRT refined error circle (Goad et al. 10460). Using 3 USNO-B1 stars we calibrated our photometry and obtained i' = 22.01 +- 0.05 mag This value is significantly below the detection reported by Huang et al. (GCN 10461) confirming that this is the afterglow of GRB 100302A. We also performed a single 1200s spectroscopic observation. No absorption or emission features have been detected over the 4000-9000A coverage of our spectrum. We thank the Gemini staff for performing this observation, in particular Andrew Stephens."
GCN 10466 table
GRB_name GRB100302A
GCN_number 10466
Detection_method Other
redshift 4.8130
Circular_text TITLE: GCN CIRCULAR NUMBER: 10466 SUBJECT: GRB 100302A: Gemini-North redshift DATE: 10/03/03 16:38:03 GMT FROM: Ryan Chornock at UC Berkeley R. Chornock (Harvard), A. Cucchiara, D. Fox (Penn St.), and E. Berger (Harvard) report on behalf of a larger collaboration: Further analysis of the Gemini-North GMOS spectrum of the afterglow (Huang et al., GCN 10461) of GRB 100302A (Cummings et al., GCN 10458) described in GCN 10465 (Cucchiara et al.) reveals that the afterglow shows a sharp increase in continuum flux redward of 7100 Angs, with only a weak continuum detected between 5500 and 7000 Angs, consistent with absorption by H I at z~4.8. There are several narrow absorption features superposed on the noisy red continuum, consistent with N V, Si II, Si II*, and C II at a mean redshift of 4.813, which we identify as the redshift of this burst.
GCN 10467 table
GRB_name GRB100302A
GCN_number 10467
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 10467 SUBJECT: GRB 100302A: Swift-XRT refined analysis DATE: 10/03/03 17:09:17 GMT FROM: Valerio D'Elia at INAF-OAR V. D'Elia, M. Perri (ASDC) and J.R. Cummings (NASA/UMBC) report on behalf of the Swift-XRT team: We have analysed the first 3 orbits of Swift-XRT data obtained from GRB 100302A (trigger 414592; Cummings, et al., GCN Circ. 10458) from 125 s to 28.8 ks after the BAT trigger. The best position of the X-ray afterglow is the UVOT enhanced XRT position given in Goad et al. (GCN Circ. 10460). The 0.3-10 keV light curve shows a multiple peak structure, with three main spikes at about T+200, T+250 and T+400s, followed by a fast decay with index 3.35+-0.3 and by a break at 1ks. Later time data are fitted by a second power law with a decay index of 0.26+-0.12. A spectrum formed from the PC mode data can be fitted with an absorbed power-law with a photon spectral index of 2.28 (-0.15, +0.17). The best-fitting absorption column is 1.1 (-0.20, +0.17) x 10^21 cm^-2, in excess of the Galactic value of 1.9 x 10^20 cm^-2 (Kalberla et al. 2005). The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.3 x 10^-11 (4.7 x 10^-11) erg cm^-2 count^-1. If the light curve continues to decay with a power-law decay index of 0.26, the count rate at T+24 hours will be 0.01 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 3.3 x 10^-13 (4.7 x 10^-13) erg cm^-2 s^-1. The results of the XRT-team automatic analysis are available at http://www.swift.ac.uk/xrt_products/00414592. This circular is an official product of the Swift-XRT team.
GCN 10468 table
GRB_name GRB100302A
GCN_number 10468
Detection_method Swift-UVOT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 10468 SUBJECT: GRB 100302A: Swift/UVOT Upper Limits DATE: 10/03/03 19:04:52 GMT FROM: Michele Stark at PSU/Swift M. A. Stark (PSU) and J. R. Cummings (NASA/UMBC) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 100302A 132 s after the BAT trigger (Cummings et al., GCN 10458). No optical afterglow consistent with the XRT position (Cummings et al., GCN 10458) is detected in the initial UVOT exposures. We do not see any source within the XRT error circle that might correspond to the R and I-band source reported by Huang et al. (GCN 10461) from the Lulin 1-meter telescope or the i' source reported by Cucchiara and Fox (GCN 10465) from Gemini-N. Preliminary 3-sigma upper limits using the UVOT photometric system (Poole et al. 2008, MNRAS, 383, 627) for the initial exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag --------------------------------------------------- white_FC 133 282 147 >21.06 white 133 2044 431 >21.24 v 621 1933 156 >18.82 b 547 2032 136 >19.58 u 291 2007 382 >20.10 w1 670 1982 155 >19.49 m2 645 1957 136 >19.26 w2 596 1908 156 >19.61 The values quoted above are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.02 in the direction of the burst (Schlegel et al. 1998).
GCN 10469 table
GRB_name GRB100302A
GCN_number 10469
Detection_method Swift-BAT Det
Circular_text TITLE: GCN CIRCULAR NUMBER: 10469 SUBJECT: GRB 100302A: Ondrejov 65cm limit DATE: 10/03/04 15:24:50 GMT FROM: Petr Kubanek at AIO K. Hornoch (Astronomical Institute, Academy of Sciences of the Czech Republic) & P. Kubanek (IPL UV Valencia & IAA CSIC Granada, Spain) reports on behalf of a larger collaboration: We acquired unfiltered CCD images of GRB 100302A XRT error box (J.R.Cummings, GCN 10458) with Ondrejov 65cm telescope + CCD. AS the CCD is equipped with IR-block filter its sensitivity in I band is very close to 0. Observation started March 3 00:40 UT (4h47m after the BAT trigger). During observation which run till 03:00 UT 45 of 3 minutes exposures were obtained. On the combined image we do not identify any new object down to R ~22 magnitude. Particularly we do not see anything significant at the proposed OT position (K.Y. Huang, GCN 10461). This message can be cited
GCN 10480 table
GRB_name GRB100302A
GCN_number 10480
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 10480 SUBJECT: GRB100302A : LOAO observations and Lulin afterglow analysis DATE: 10/03/06 02:14:20 GMT FROM: Kuiyun Huang at ASIAA GRB100302A : LOAO observations and Lulin afterglow analysis K.Y. Huang (ASIAA), Myungshin Im (CEOU/Seoul National Univ) and Y. Urata (NCU) on behalf of EAFON team : We observed GRB100302A afterglow position (Goad et al. GCN 10460, Huang et al. GCN 10461 and Cucchiarar & Fox GCN 10465) in i-band (12x300s) using 1.0 telescope at Mt. Lemmon (Arizona, US) operated by the Korea Astronomy Space Science Institute. No significant detection of afterglow in our i-band combined image at 11.0709 hours after the burst. The 3-sigma limiting magnitude is 20.8, which calibrated with five nearby USNOB stars. We also reduced R and i band images taken by Lulin 1-m telescopes. Our photometric results, combined with the i-band detection reported by Cucchiarar & Fox (GCN 10465), indicate the i-band power law index is about -0.65. Delay time filter EXPTIME Magnitude error (hour) --------------------------------------------------- 0.450 R 300s x 5 21.54 0.22 0.780 I 300s 20.02 0.12 0.873 I 300s 20.24 0.15 0.966 I 300s 20.08 0.13 1.060 I 300s 20.17 0.17 1.153 I 300s 20.34 0.19 1.357 I 300s x 4 20.31 0.17 -------------------------------------------------- This message can be cited