GRB221216A

This page lists all entries on GRB221216A in GRBweb

Summary Fermi GBM IPN Swift GCN 33066 GCN 33067 GCN 33068 GCN 33069 GCN 33070 GCN 33071 GCN 33073 GCN 33076 GCN 33077 GCN 33078 GCN 33088 GCN 33254

Summary table
Variable Value Source
GRB_name_Fermi GRB221216473
T0 11:21:05.640 UTC Fermi_GBM
ra 326.0300° Swift
decl -34.4211° Swift
pos_error 2.59e-04° Swift
T90 184.324 s Fermi_GBM
T90_error 4.238 s Fermi_GBM
T90_start 11:21:05.640 UTC Fermi_GBM
fluence 6.86e-06 erg/cm² Fermi_GBM
fluence_error 5.94e-08 erg/cm² Fermi_GBM
T100 184.324 s
GBM_located False
mjd 59929.47298194445 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB221216473
trigger_name bn221216473
ra 326.0208°
decl -34.4050°
pos_error 2.97e+00°
datum 2022-12-16
t_trigger 11:21:18.184 UTC
T90 184.324 s
T90_error 4.238 s
T90_start 11:21:05.640 UTC
fluence 6.86e-06 erg/cm²
fluence_error 5.94e-08 erg/cm²
flux_1024 3.69e+00 erg/cm²/s
flux_1024_error 2.77e-01 erg/cm²/s
flux_1024_time 3.14e+00 erg/cm²/s
flux_64 6.05e+00 erg/cm²/s
flux_64_error 1.64e+00 erg/cm²/s
IPN table
GRB_name GRB221216A
ra 326.0208°
decl -34.4000°
pos_error 5.00e-02°
Swift table
GRB_name GRB221216A
t_trigger 11:21:20 UTC
ra 326.0300°
decl -34.4211°
pos_error 2.59e-04°
GCN 33066 table
GRB_name GRB221216A
GCN_number 33066
Detection_method Fermi GBM final loc
t_trigger 11:21:18 UTC
ra 276.3000°
decl -58.1000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 33066 SUBJECT: GRB 221216A: Fermi GBM Final Real-time Localization DATE: 22/12/16 11:31:45 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 11:21:18 UT on 16 Dec 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 221216A (trigger 692882483.183742 / 221216473). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 276.3, Dec = -58.1 (J2000 degrees, equivalent to J2000 18h 25m, -58d 06'), with a statistical uncertainty of 5.7 degrees. The angle from the Fermi LAT boresight is 139.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221216473/quicklook/glg_skymap_all_bn221216473.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221216473/quicklook/glg_healpix_all_bn221216473.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221216473/quicklook/glg_lc_medres34_bn221216473.gif
GCN 33067 table
GRB_name GRB221216A
GCN_number 33067
Detection_method Swift Det
t_trigger 11:21:20 UTC
ra 326.0210°
decl -34.4050°
Circular_text TITLE: GCN CIRCULAR NUMBER: 33067 SUBJECT: GRB 221216A: Swift detection of a burst DATE: 22/12/16 11:34:25 GMT FROM: Kim Page at U.of Leicester S. Dichiara (PSU), R. A. J. Eyles-Ferris (U Leicester), J.D. Gropp (PSU), K. L. Page (U Leicester), D. M. Palmer (LANL) and B. Sbarufatti (INAF-OAB) report on behalf of the Neil Gehrels Swift Observatory Team: At 11:21:20 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 221216A (trigger=1144698). Swift slewed immediately to the burst. The BAT on-board calculated location is RA, Dec 326.021, -34.405 which is RA(J2000) = 21h 44m 05s Dec(J2000) = -34d 24' 17" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a complex structure with a duration of at least 200 sec. The peak count rate was ~1640 counts/sec (15-350 keV), at ~0 sec after the trigger. The XRT began observing the field at 11:22:32.6 UT, 71.7 seconds after the BAT trigger. XRT found a bright, uncatalogued X-ray source located at RA, Dec 326.0326, -34.4223 which is equivalent to: RA(J2000) = 21h 44m 7.82s Dec(J2000) = -34d 25' 20.3" with an uncertainty of 4.8 arcseconds (radius, 90% containment). No event data are yet available to determine the column density using X-ray spectroscopy. UVOT took a finding chart exposure of 150 seconds with the White filter starting 81 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 0.042. Burst Advocate for this burst is S. Dichiara (simonedichiara55 AT gmail.com). 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/)
GCN 33068 table
GRB_name GRB221216A
GCN_number 33068
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 33068 SUBJECT: GRB 221216A: Nanshan/NEXT optical upper limits DATE: 22/12/16 13:20:08 GMT FROM: Dong Xu at NAOC/CAS T.H. Lu, X. Liu (NAOC), Z.P. Zhu (NAOC, HUST), S.Q. Jiang, S.Y. Fu, D. Xu (NAOC), X. Gao (Urumqi No.1 Senior High School), J.Z. Liu (XAO) report: We observed the field of GRB 221216A detected by Swift (Dichiara et al., GCN 33067) using the NEXT-0.6m telescope located at Nanshan, Xinjiang, China. We obtained a series of frames in the Sloan r-band and z-band, starting at 11:23:09 UT on 2022-12-16, i.e., 109s after the BAT trigger. No optical source is detected in our stacked images at the XRT position (Dichiara et al., GCN 33067), with upper limits as follows: T_mid-T0 (min) Filter Upper limit(3-sigma) 14.26 r >17.5 14.90 z >16.5 calibrated with the nearby SkyMapper field and not corrected for Galactic extinction.
GCN 33069 table
GRB_name GRB221216A
GCN_number 33069
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 33069 SUBJECT: GRB 221216A: Zadko observatory - Gingin optical observations DATE: 22/12/16 13:45:05 GMT FROM: Bruce Gendre at UVI B. Gendre, H. Crisp, E. Moore, F. Panther, D. Coward, J. A. Moore (OzGrav-UWA), A. Klotz (IRAP-CNRS-OMP), and P. Thierry (AGORA), report: We imaged the field of GRB 221216A detected by SWIFT (trigger 1144698) with the Zadko robotic telescope (D=100cm) located at the observatory - Gingin, Australia. The observations started 1.39h after the GRB trigger. The elevation of the field decreased from 35 degrees above horizon and weather conditions were good. On individual images taken between t0+4994.4s and t0+7433.4s, we do not detect any OT with a limiting magnitude of: R > 17.5 On a co-added series of exposures between t0+4993s to t0+6613s, we estimated a limiting magnitude of R > 19.0 Magnitudes were estimated with the nearby USNO-B1 stars and are not corrected for galactic dust extinction. N.B. Galactic coordinates are lon= 10.7381 lat=-49.4597 and the galactic extinction in R band is 0.1 magnitudes estimated from D. Schlegel et al. 1998ApJ...500..525S. This message may be cited.
GCN 33070 table
GRB_name GRB221216A
GCN_number 33070
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 33070 SUBJECT: Swift GRB 221216A: Global MASTER-Net observations report DATE: 22/12/16 14:42:19 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko, G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev (Irkutsk State University, API), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V.Yurkov (Blagoveschensk Educational State University) MASTER-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the Swift GRB 221216A ( S. Dichiara et al., GCN 33067) errorbox 11435 sec after notice time and 11456 sec after trigger time at 2022-12-16 14:32:17 UT, with upper limit up to 15.4 mag. Observations started at twilight. The observations began at zenith distance = 79 deg. The sun altitude is -9.8 deg. The galactic latitude b = -50 deg., longitude l = 11 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2184841 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 11546 | MASTER-Kislovodsk | C | 180 | 15.4 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
GCN 33071 table
GRB_name GRB221216A
GCN_number 33071
Detection_method Swift-XRT Det
ra 326.0302°
decl -34.4213°
Circular_text TITLE: GCN CIRCULAR NUMBER: 33071 SUBJECT: GRB 221216A: Enhanced Swift-XRT position DATE: 22/12/16 15:19:05 GMT FROM: Phil Evans at U of Leicester P.A. Evans, M.R. Goad, J.P. Osborne and A.P. Beardmore (U. Leicester) report on behalf of the Swift-XRT team. Using 1446 s of XRT Photon Counting mode data and 4 UVOT images for GRB 221216A, 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 = 326.03022, -34.42125 which is equivalent to: RA (J2000): 21h 44m 7.25s Dec (J2000): -34d 25' 16.5" 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 33073 table
GRB_name GRB221216A
GCN_number 33073
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 33073 SUBJECT: GRB 221216A: AKO Upper Limit DATE: 22/12/16 16:32:07 GMT FROM: Mohammad Odeh at Al Khatim Observatory M44 Mohammad Odeh of Al-Khatim Observatory (AKO) operated by the International Astronomical Center, in Abu Dhabi, UAE. We observed the field of GRB 221216A detected by FERMI (GCN 33066) and Swift (Dichiara et al., GCN 33067) with our 0.35m f/7.7 robotic telescope. The observation was done on 16 December 2022 from 15:17:47 to 15:32:55 (UT), 4.1 hours after the GRB trigger. We obtained multiple 180-sec exposures in Ic filter. We did not detect any afterglow within XRT localization (Evans et al., GCN 33071). This is consistent with the reported non-detections of (Lu et al., GCN 33068) and (Gendre et al., GCN 33069). The following upper limit was calculated using Atlas catalogue as a reference: ---------------------------------------------------------------------------- - JD (mid), T_mid-T0(hrs), Exposure (sec), Filter, Lim_mag ---------------------------------------------------------------------------- - 2459930.142604, 4.1, 5 x 180 (stacked), Ic, > 17.3 ---------------------------------------------------------------------------- - These magnitudes are not corrected for galactic extinction.
GCN 33076 table
GRB_name GRB221216A
GCN_number 33076
Detection_method Swift-XRT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 33076 SUBJECT: GRB 221216A: Swift-XRT refined Analysis DATE: 22/12/17 00:12:54 GMT FROM: Phil Evans at U of Leicester E. Ambrosi (INAF-IASFPA) , M. Capalbi (INAF-IASFPA), M. Perri (SSDC & INAF-OAR), J.A. Kennea (PSU), A. Tohuvavohu (U. Toronto), A.P. Beardmore (U. Leicester), P.A. Evans (U. Leicester), J.P. Osborne (U. Leicester) and S. Dichiara report on behalf of the Swift-XRT team: We have analysed 6.6 ks of XRT data for GRB 221216A (Dichiara et al. GCN Circ. 33067), from 61 s to 38.7 ks after the BAT trigger. The data comprise 249 s in Windowed Timing (WT) mode (the first 10 s were taken while Swift was slewing) with the remainder in Photon Counting (PC) mode. The enhanced XRT position for this burst was given by Evans et al. (GCN Circ. 33071). The late-time light curve (from T0+4.6 ks) can be modelled with an initial power-law decay with an index of alpha=0.30 (+0.16, -0.17), followed by a break at T+12.4 ks to an alpha of 2.2 (+0.4, -0.3). A spectrum formed from the WT mode data can be fitted with an absorbed power-law with a photon spectral index of 1.58 (+/-0.03). The best-fitting absorption column is 1.49 (+0.13, -0.12) x 10^21 cm^-2, in excess of the Galactic value of 2.8 x 10^20 cm^-2 (Willingale et al. 2013). The PC mode spectrum has a photon index of 1.75 (+0.12, -0.11) and a best-fitting absorption column of 5.1 (+2.9, -2.3) x 10^20 cm^-2. The counts to observed (unabsorbed) 0.3-10 keV flux conversion factor deduced from this spectrum is 3.7 x 10^-11 (4.0 x 10^-11) erg cm^-2 count^-1. A summary of the PC-mode spectrum is thus: Total column: 5.1 (+2.9, -2.3) x 10^20 cm^-2 Galactic foreground: 2.8 x 10^20 cm^-2 Excess significance: <1.6 sigma Photon index: 1.75 (+0.12, -0.11) If the light curve continues to decay with a power-law decay index of 2.2, the count rate at T+24 hours will be 6.3 x 10^-3 count s^-1, corresponding to an observed (unabsorbed) 0.3-10 keV flux of 2.3 x 10^-13 (2.5 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/01144698. This circular is an official product of the Swift-XRT team.
GCN 33077 table
GRB_name GRB221216A
GCN_number 33077
Detection_method Fermi GBM Det
t_trigger 11:21:18.180 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 33077 SUBJECT: GRB 221216A: Fermi GBM observation DATE: 22/12/17 09:17:16 GMT FROM: Rachel Dunwoody at UCD R. Dunwoody (UCD), J. Mangan (UCD) and C. Meegan (UAH) report on behalf of the Fermi GBM Team: "At 11:21:18.18 UT on 16 December 2022, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 221216A (trigger 692882483 / 221216473) which was also detected by the Swift/BAT (Dichiara et al. 2022, GCN 33067) The Fermi GBM Final Real-time Localization (GCN 33066) is consistent with the Swift position. The angle from the Fermi LAT boresight at the GBM trigger time is 101 degrees. The GBM light curve shows multiple peaks with a duration (T90) of about 184 s (50-300 keV). The time-averaged spectrum from T0-15 s to T0+173 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -0.58 +/- 0.18 and the cutoff energy, parameterized as Epeak, is 94.6 +/- 8.4 keV. It is fit equally well with a Band function with Epeak = 82.4 +/- 12.1 keV, alpha = -0.4 +/- 0.3, and beta = -2.5 +/- 0.3. The event fluence (10-1000 keV) in this time interval is (6.31 +/- 0.40)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+3 s in the 10-1000 keV band is 3.7 +/- 0.3 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog: https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html For Fermi GBM data and info, please visit the official Fermi GBM Support Page: https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"
GCN 33078 table
GRB_name GRB221216A
GCN_number 33078
Detection_method Swift-UVOT Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 33078 SUBJECT: GRB 221216A: Swift/UVOT Upper Limits DATE: 22/12/17 16:50:13 GMT FROM: Paul Kuin at MSSL Paul Kuin (MSSL/UCL) and Simone Dichiara(PSU) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 221116A 113 s after the BAT trigger (Dichiara et al., GCN Circ. 33067). No optical afterglow consistent with the enhanced XRT position 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 113 263 147 >20.3 white 4797 4997 197 >20.4 u 325 358 32 >18.3 b 4592 6041 197 >19.7 uvw1 5618 5818 197 >19.4 uvm2 5413 5613 197 >19.4 uvw2 5003 5203 197 >19.6 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.042 in the direction of the burst (Schlegel et al. 1998).
GCN 33088 table
GRB_name GRB221216A
GCN_number 33088
Detection_method Fermi GBM Det
t_trigger 11:21:28 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 33088 SUBJECT: GRB 221216A: Detection by VZLUSAT-2 DATE: 22/12/20 13:17:55 GMT FROM: Jakub Ripa at Masaryk University <245487@mail.muni.cz> J. Ripa (Masaryk U.), A. Pal (Konkoly Observatory), N. Werner (Masaryk U.), M. Ohno (Hiroshima U.), L. Meszaros, B. Csak (Konkoly Observatory), H. Takahashi (Hiroshima U.), F. Munz , M. Topinka, F. Hroch, M. Dafcikova, N. Husarikova, J.-P. Breuer (Masaryk U.), J. Hudec, J. Kapus, M. Frajt, M. Rezenov (Spacemanic s.r.o), R. Laszlo (Needronix), G. Galgoczi (Wigner Research Center/Eotvos U.), N. Uchida (ISAS/JAXA), T. Enoto (Kyoto U.), Zs. Frei (Eotvos U.), Y. Fukazawa, K. Hirose, H. Matake (Hiroshima U.), S. Hisadomi (Nagoya U.), Y. Ichinohe (Rikkyo U.), L. L. Kiss (Konkoly Observatory), T. Mizuno (Hiroshima U.), K. Nakazawa (Nagoya U.), H. Odaka (Univ of Tokyo), K. Torigoe (Hiroshima U.), P. Svoboda, V. Daniel, J. Dudas, M. Junas, J. Gromes (VZLU), I. Vertat (FEL ZCU) -- the VZLUSAT-2/GRB payload collaboration. The long-duration GRB 221216A (Fermi/GBM detection: Dunwoody et al., GCN Circ. 33077; Dichiara et al., GCN Circ. 33067; GECAM-B trigger num. 105) was detected by the GRB detector on board of the VZLUSAT-2 3U CubeSat (https://www.vzlusat2.cz/en/). The data acquisition was performed by GRB detector unit no. 1 and the count rate curve shows the peak time at 2022-12-16 11:21:28 UTC. The T90 duration was measured to be 90 s with the light curve resolution of 1 s. The significance during T90 reaches 9.5 sigma. The light curve obtained by VZLUSAT-2 is available here: https://vzlusat2.konkoly.hu/static/share/GRB221216A_GCN_VZLUSAT2.pdf GRB detectors on VZLUSAT-2 are a demonstration payload for a future CubeSats constellation (Werner et al. Proc. SPIE 2018). Two GRB modules of VZLUSAT-2 are placed in a perpendicular manner and each consists of a 75 x 75 x 5 mm3 CsI scintillator read out by a SiPM array, covering the energy range from ~30 keV to ~1000 keV. VZLUSAT-2 was launched on 2022 January 13 from Cape Canaveral.
GCN 33254 table
GRB_name GRB221216A
GCN_number 33254
Detection_method Swift-BAT Det
ra 326.0230°
decl -34.3940°
Circular_text TITLE: GCN CIRCULAR NUMBER: 33254 SUBJECT: GRB 221216A: Swift-BAT refined analysis DATE: 23/02/02 22:03:51 GMT FROM: Hans Krimm at NSF/NASA-GSFC H. A. Krimm (NSF), S. D. Barthelmy (GSFC), S. Dichiara (PSU), S. Laha (GSFC/UMBC), A. Y. Lien (U Tampa), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Parsotan (GSFC/UMBC), T. Sakamoto (AGU), M. Stamatikos (OSU) (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 221216A (trigger #1144698) (Dichiara, et al., GCN Circ. 33067). The BAT ground-calculated position is RA, Dec = 326.023, -34.394 deg which is RA(J2000) = 21h 44m 05.6s Dec(J2000) = -34d 23' 37.4" with an uncertainty of 1.3 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%. The mask-weighted light curve shows two broad peaks, one centered around T+0, and the other at T+165 seconds. There is a third, more narrow and weaker peak at T+50 seconds and some possible subsidiary peaks. Note that not all of the event data is available, so it is possible that the burst extended before or after this period. T90 (15-350 keV) is 174.48 +- 5.26 sec (estimated error including systematics). The time-averaged spectrum from -9.68 to T+175.22 sec is best fit by a power law with an exponential cutoff. This fit gives a photon index 1.02 +- 0.36, and Epeak of 91.0 +- 44.0 keV (chi squared 37.14 for 56 d.o.f.). For this model the total fluence in the 15-150 keV band is 4.6 +- 0.3 x 10^-6 erg/cm2 and the 1-sec peak flux measured from T+0.23 sec in the 15-150 keV band is 1.8 +- 0.2 ph/cm2/sec. A fit to a simple power law gives a photon index of 1.56 +- 0.08 (chi squared 44.55 for 57 d.o.f.). 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/1144698/BA/