GRB201104A

This page lists all entries on GRB201104A in GRBweb

Summary Fermi GBM IPN GCN 28823 GCN 28824 GCN 28828 GCN 28829 GCN 28830 GCN 28832 GCN 28834 GCN 28835 GCN 28836 GCN 28837 GCN 28859 GCN 28873

Summary table
Variable Value Source
GRB_name_Fermi GRB201104001
T0 0:00:56 UTC GCN_circulars,Fermi GBM final loc
ra 81.4000° IPN
decl -71.1000° IPN
pos_error 2.33e-01° IPN
T90 52.48 s Fermi_GBM
T90_error 7.428 s Fermi_GBM
T90_start 0:00:56.750 UTC Fermi_GBM
fluence 1.31e-05 erg/cm² Fermi_GBM
fluence_error 7.48e-08 erg/cm² Fermi_GBM
T100 53.23 s
GBM_located False
mjd 59157.00064814815 GCN_circulars,Fermi GBM final loc
Fermi GBM table
GRB_name_Fermi GRB201104001
trigger_name bn201104001
ra 81.4000°
decl -71.1000°
pos_error 2.76e+00°
datum 2020-11-04
t_trigger 0:00:56.750 UTC
T90 52.48 s
T90_error 7.428 s
T90_start 0:00:56.750 UTC
fluence 1.31e-05 erg/cm²
fluence_error 7.48e-08 erg/cm²
flux_1024 1.26e+01 erg/cm²/s
flux_1024_error 2.53e-01 erg/cm²/s
flux_1024_time 0.00e+00 erg/cm²/s
flux_64 2.59e+01 erg/cm²/s
flux_64_error 1.30e+00 erg/cm²/s
IPN table
GRB_name GRB201104A
ra 81.4000°
decl -71.1000°
pos_error 2.33e-01°
GCN 28823 table
GRB_name GRB201104A
GCN_number 28823
Detection_method Fermi GBM final loc
t_trigger 0:00:56 UTC
ra 60.4000°
decl -72.7000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 28823 SUBJECT: GRB 201104A: Fermi GBM Final Real-time Localization DATE: 20/11/04 00:11:18 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 00:00:56 UT on 4 Nov 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 201104A (trigger 626140861.749996 / 201104001). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 60.4, Dec = -72.7 (J2000 degrees, equivalent to J2000 04h 01m, -72d 42'), with a statistical uncertainty of 1.0 degrees. The angle from the Fermi LAT boresight is 65.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201104001/quicklook/glg_skymap_all_bn201104001.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201104001/quicklook/glg_healpix_all_bn201104001.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201104001/quicklook/glg_lc_medres34_bn201104001.gif
GCN 28824 table
GRB_name GRB201104A
GCN_number 28824
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 28824 SUBJECT: Fermi GRB 201104A: Global MASTER-Net observations report DATE: 20/11/04 00:15:27 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (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, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB 201104A ( Fermi GBM team, GCN 28823) errorbox 80 sec after trigger time at 2020-11-04 00:02:17 UT, with upper limit up to 17.8 mag. Observations started at twilight. The observations began at zenith distance = 59 deg. The sun altitude is -13.0 deg. The galactic latitude b = -38 deg., longitude l = 287 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1475503 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 90 | 2020-11-04 00:02:17 | MASTER-OAFA | (03h 58m 14.15s , -74d 30m 15.1s) | C | 20 | 17.4 | 130 | 2020-11-04 00:02:56 | MASTER-OAFA | (03h 58m 07.55s , -74d 31m 15.8s) | C | 20 | 17.3 | 174 | 2020-11-04 00:03:35 | MASTER-OAFA | (03h 58m 15.37s , -74d 30m 56.0s) | C | 30 | 17.4 | 228 | 2020-11-04 00:04:25 | MASTER-OAFA | (03h 58m 11.98s , -74d 29m 19.8s) | C | 40 | 17.6 | 293 | 2020-11-04 00:05:24 | MASTER-OAFA | (03h 58m 12.40s , -74d 30m 55.2s) | C | 50 | 17.8 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
GCN 28828 table
GRB_name GRB201104A
GCN_number 28828
Detection_method Fermi LAT Det
t_trigger 0:00:56 UTC
ra 81.4000°
decl -71.1000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 28828 SUBJECT: GRB 201104A: Fermi-LAT detection DATE: 20/11/04 20:30:07 GMT FROM: Masanori Ohno at Hiroshima University M. Ohno (Hiroshima U./Eotvos U.), N. Omodei (Stanford University), F. Longo (University & INFN Trieste) and M. Axelsson (KTH & Stockholm Univ.) report on behalf of the Fermi-LAT Collaboration: On November 4, 2020, Fermi-LAT detected high-energy emission from GRB 201104A, which was also detected by Fermi-GBM (trigger 626140861/201104001) (Fermi-GBM team; GCN Circ. 28823). The best LAT on-ground location is found to be RA, Dec = 81.4, -71.1 (degrees, J2000) with an error radius of 0.24 deg (90% containment, statistical error only). This was 6.7 deg from the LAT boresight at the time of the GBM trigger: T0 = 00:00:56 UT. The source quickly went out from the LAT FoV but the data from the Fermi-LAT show a significant increase in the event rate after the GBM trigger that is spatially and temporally correlated with the GBM emission with high significance. The photon flux above 100 MeV in the time interval 0-100 s after the GBM trigger is (2.6+/-0.4)e-4 ph/cm2/s. The estimated photon index above 100 MeV is -2.5 +/- 0.2. The highest-energy photon is a 3.7 GeV event which is observed 16 seconds after the GBM trigger. A Swift ToO has been requested for this burst The Fermi-LAT point of contact for this burst is Masanori Ohno (ohno@astro.hiroshima-u.ac.jp). The Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden. [GCN OPS NOTE(06Nov20): Due to the uncertainty of the arrival time with respect to the downtime window (15 hours) of the GCN Circulars processing system, the error in the date-time in the header of this Circular can be off anywhere from 0-15 hours.]
GCN 28829 table
GRB_name GRB201104A
GCN_number 28829
Detection_method INTEGRAL
Circular_text TITLE: GCN CIRCULAR NUMBER: 28829 SUBJECT: GRB 201104A: AGILE/MCAL detection DATE: 20/11/04 20:46:45 GMT FROM: Alessandro Ursi at INAF/IAPS A. Ursi (INAF/IAPS), F. Verrecchia, C. Pittori (SSDC, and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A. Argan, M. Cardillo, C. Casentini, Y. Evangelista, G. Piano (INAF/IAPS), F. Lucarelli (SSDC, and INAF/OAR), A. Bulgarelli, V. Fioretti, F. Fuschino, N. Parmiggiani (INAF/OAS-Bologna), M. Marisaldi (INAF/OAS-Bologna, and Bergen University), M. Pilia, A. Trois (INAF/OA-Cagliari), I. Donnarumma (ASI), F. Longo (Univ. Trieste and INFN Trieste), A. Giuliani (INAF/IASF-Mi), report on behalf of the AGILE Team: The AGILE Mini-CALorimeter (MCAL) detected GRB 201104A at T0 = 2020-11-04 00:00:56.77 +/- 0.01 s (UTC), reported by Fermi/GBM (GCN #28823) and INTEGRAL/SPI-ACS (trigger ID 8789,0). The event lasted about 8 s and released a total number of ~7200 counts in the detector (in the 0.4-100 MeV energy range), above an average background rate of 640 Hz. The light curve shows sveral episodes and can be found at http://www.agilescienceapp.it/notices/GRB_070287_531532856.770000.png . The time-integrated spectrum of the burst can be fitted in the energy range 0.4-20 MeV with a single power-law with ph.ind. = -2.26 -0.15/+0.18, resulting in a reduced chi-squared of 1.06 (75 d.o.f.) and a fluence of 3.57e-06 ergs/cm^2 (90% confidence level), in the same energy range. The burst is clearly visible in the AGILE scientific ratemeters of the MCAL detector. The event released a total number of 25100 counts, above a background rate of 1255 Hz. The AGILE ratemeter light curves can be found at http://www.agilescienceapp.it/notices/GRB_201104A_AGILE_RM.png . The AGILE-MCAL detector is a CsI detector with a 4 pi FoV, sensitive in the energy range 0.4-100 MeV. Additional analysis of AGILE data is in progress. Automatic MCAL GRB alert Notices can be found at: https://gcn.gsfc.nasa.gov/agile_mcal.html. [GCN OPS NOTE(06Nov20): Due to the uncertainty of the arrival time with respect to the downtime window (15 hours) of the GCN Circulars processing system, the error in the date-time in the header of this Circular can be off anywhere from 0-15 hours.]
GCN 28830 table
GRB_name GRB201104A
GCN_number 28830
Detection_method Fermi GBM Det
t_trigger 0:00:56.750 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 28830 SUBJECT: GRB 201104A: Fermi GBM observation DATE: 20/11/04 20:51:58 GMT FROM: Christian Malacaria at NASA-MSFC/USRA E. Bissaldi (Politecnico and INFN Bari) and C. Malacaria (NASA-MSFC/USRA) report on behalf of the Fermi GBM Team: "At 00:00:56.75 UT on 4 November 2020, the Fermi Gamma-Ray Burst Monitor (GBM) triggered and located GRB 201104A (trigger 626140861 / 201104001, which was also detected by the Fermi-LAT (Ohno et al. 2020, GCN 28828) and AGILE (Ursi et al. 2020, GCN 28829). The GBM on-ground location is consistent with the LAT position. The angle from the Fermi LAT boresight at the GBM trigger time is 57 degrees. The GBM light curve shows a bright emission episode with a duration (T90) of about 8.4 s (50-300 keV). The time-averaged spectrum from T0 to T0+9 s is best fit by a Band function with Epeak = 1140 +/- 130 keV, alpha = -0.76 +/- 0.04, and beta = -2.24 +/- 0.17. The event fluence (10-1000 keV) in this time interval is (1.55 +/- 0.03)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0 in the 10-1000 keV band is 12.1 +/- 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 28832 table
GRB_name GRB201104A
GCN_number 28832
Detection_method Swift Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 28832 SUBJECT: GRB 201104A: Tiled Swift observations DATE: 20/11/04 21:22:19 GMT FROM: Phil Evans at U of Leicester P. A. Evans (U. Leicester) reports on behalf of the Swift team: Swift has initiated a series of observations, tiled on the sky, of the Fermi/LAT GRB 201104A. Automated analysis of the XRT data will be presented online at http://www.swift.ac.uk/xrt_products/TILED_GRB00094 Any uncatalogued X-ray sources detected in this analysis will be reported on this website and via GCN COUNTERPART notices. The probability of finding serendipitous sources, unrelated to the Fermi/LAT event is high: any X-ray source considered to be a probable afterglow candidate will be reported via a GCN Circular after manual consideration. Details of the XRT automated analysis methods are detailed in Evans et al. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8). This circular is an official product of the Swift-XRT team. [GCN OPS NOTE(06Nov20): Due to the uncertainty of the arrival time with respect to the downtime window (15 hours) of the GCN Circulars processing system, the error in the date-time in the header of this Circular can be off anywhere from 0-15 hours.]
GCN 28834 table
GRB_name GRB201104A
GCN_number 28834
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 28834 SUBJECT: GRB 201104A: BALROG localization (Fermi Trigger 626140861 / GRB 201104001) DATE: 20/11/04 22:35:07 GMT FROM: Jochen Greiner at MPE,Garching F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 626140861 at 00:00:56 on 04 Nov. 2020 were automatically fitted for spectrum and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427; Berlato et al. 2019, ApJ 873, 60). The best-fit position (1 sigma statistical errors) is: RA(2000.0) = 67.9+/-10.4 deg Decl.(2000.0) = -73.2+/-1.6 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB201104001/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB201104001/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB201104001/json
GCN 28835 table
GRB_name GRB201104A
GCN_number 28835
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 28835 SUBJECT: GRB 201104A: BALROG localization (Fermi Trigger 626140861 / GRB 201104001) DATE: 20/11/04 22:35:09 GMT FROM: Jochen Greiner at MPE,Garching F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 626140861 at 00:00:56 on 04 Nov. 2020 were automatically fitted for spectrum and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427; Berlato et al. 2019, ApJ 873, 60). The best-fit position (1 sigma statistical errors) is: RA(2000.0) = 67.9+/-10.4 deg Decl.(2000.0) = -73.2+/-1.6 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB201104001/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB201104001/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB201104001/json
GCN 28836 table
GRB_name GRB201104A
GCN_number 28836
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 28836 SUBJECT: GRB 201104A: BALROG localization (Fermi Trigger 626140861 / GRB 201104001) DATE: 20/11/04 22:37:25 GMT FROM: Jochen Greiner at MPE,Garching F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 626140861 at 00:00:56 on 04 Nov. 2020 were automatically fitted for spectrum and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427; Berlato et al. 2019, ApJ 873, 60). The best-fit position (1 sigma statistical errors) is: RA(2000.0) = 67.9+/-10.4 deg Decl.(2000.0) = -73.2+/-1.6 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB201104001/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB201104001/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB201104001/json
GCN 28837 table
GRB_name GRB201104A
GCN_number 28837
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 28837 SUBJECT: GRB 201104A: BALROG localization (Fermi Trigger 626140861 / GRB 201104001) DATE: 20/11/05 01:40:31 GMT FROM: Jochen Greiner at MPE,Garching F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 626140861 at 00:00:56 on 04 Nov. 2020 were automatically fitted for spectrum and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427; Berlato et al. 2019, ApJ 873, 60). The best-fit position (1 sigma statistical errors) is: RA(2000.0) = 67.9+/-10.4 deg Decl.(2000.0) = -73.2+/-1.6 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB201104001/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB201104001/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB201104001/json [GCN OPS NOTE(04Nov20): This circular (28837) is a retransmission of the circular being submitted 3 times and having delayed deliveries due to GCN being down. The original time of submission for this circular was 22:35 UT 20/11/04.]
GCN 28859 table
GRB_name GRB201104A
GCN_number 28859
Detection_method Swift-XRT Other
ra 80.9041°
decl -71.0096°
Circular_text TITLE: GCN CIRCULAR NUMBER: 28859 SUBJECT: GRB 201104A: Swift-XRT observations DATE: 20/11/06 17:46:49 GMT FROM: Boris Sbarufatti at PSU V. D'Elia (ASDC), A. D'Ai (INAF-IASFPA), D.N. Burrows (PSU), J. D. Gropp (PSU), J.A. Kennea (PSU), A.P. Beardmore (U. Leicester), J.P. Osborne (U. Leicester), A. Melandri (INAF-OAB) and P.A. Evans (U. Leicester) report on behalf of the Swift-XRT team: Swift-XRT has performed follow-up observations of the Fermi/LAT-detected burst GRB 201104A (Ohno et al. GCN Circ. 28828) in a series of observations tiled on the sky. The total exposure time is 4.7 ks, distributed over 3 tiles; the maximum exposure at a single sky location was 2.4 ks. The data were collected between T0+67.6 ks and T0+80.9 ks, and are entirely in Photon Counting (PC) mode. One uncatalogued X-ray source has been detected, it is not above the RASS limit or shows definitive signs of fading. Furthermore, it is coincident with a known optical source and the XRT data are possibly affected by stray light. Therefore we believe that XRT has not detected any viable candidate afterglow. Details of the sources are given below: Source 3: RA (J2000): 80.9041 = 05:23:36.99 Dec (J2000): -71.0096 = -71:00:34.6 Error: 4.1 arcsec (radius, 90% conf. [Enhanced position]) Count-rate: (5.3 [+2.7, -2.0])e-3 ct s^-1 Distance: 664 arcsec from Fermi/LAT position. Flux: (1.53 [+0.77, -0.59])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV) A catalogued source was also detected inside the LAT error circle, and two more sources were detected outside of it. The 3 sigma upper limit at the LAT GRB position is 7.6×10-3 ct s-1. The results of the XRT-team automatic analysis of the tiled XRT observations, including a position-specific upper limit calculator, are available at https://www.swift.ac.uk/xrt_products/TILED_GRB00094. This circular is an official product of the Swift-XRT team.
GCN 28873 table
GRB_name GRB201104A
GCN_number 28873
Detection_method AstroSat CZTI
Circular_text TITLE: GCN CIRCULAR NUMBER: 28873 SUBJECT: GRB 201104A: AstroSat CZTI detection DATE: 20/11/09 20:42:02 GMT FROM: Soumya Gupta at IUCAA/ASTROSAT S. Gupta, V. Sharma and D. Bhattacharya (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (IUCAA/TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration: The AstroSat CZT Imager recorded a transient event in all four of its CsI anticoincidence (Veto) detectors in the 100-500 keV energy range, coincident with the long GRB 201104A reported by Fermi GBM (GCN #28823), Global MASTER-Net (Lipunov V. et al., GCN #28824), Fermi LAT (Ohno M. et al., GCN #28828), AGILE/MCAL (Ursi A. et al., GCN #28829), Fermi GBM (Bissaldi E. et al., GCN #28830), Tiled Swift (Evans P. et al., GCN #28832), BALROG (Kunzweiler F. et al., GCN #28834) and Swift-XRT (D'Elia V. et al., GCN #28859). There was a weak detection in the main CZT detectors in the 40-200 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2020-11-04 00:00:55.000 UT. The measured peak count rate is 1757 +/- 68 cts/s above the background in the combined Veto data of four quadrants, with a total of 6949 +/- 80 cts. The local mean background count rate was 2774 +/- 5 cts/s. We measure a T90 of 8.18 +/- 0.13 s from the cumulative Veto light curve. In the main CZT detectors, the light curve showed multiple peaks of emission with the strongest peak at 2020-11-04 00:00:56.000 UT. The measured peak count rate associated with the burst is 330 +/- 33 cts/s above the background in the combined data of four quadrants, with a total of 1170 +/- 23 cts. The local mean background count rate was 792 +/- 2 cts/s. Using cumulative rates, we measure a T90 of 7.36 +/- 0.11 s. CZTI GRB detections are reported regularly on the payload site at http://astrosat.iucaa.in/czti/?q=grb. CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, ISAC, IUCAA, SAC and PRL. The Indian Space Research Organisation funded, managed and facilitated the project.