GRB241204A

This page lists all entries on GRB241204A in GRBweb

Summary Fermi GBM IPN GCN 38436 GCN 38440 GCN 38441 GCN 38445 GCN 38631

Summary table
Variable Value Source
GRB_name_Fermi GRB241204152
T0 3:39:19.909 UTC GCN_circulars,Konus-Wind Det
ra 316.5000° IPN
decl 6.5500° IPN
pos_error 5.00e-01° IPN
T90 0.768 s Fermi_GBM
T90_error 0.143 s Fermi_GBM
T90_start 3:39:22.451 UTC Fermi_GBM
fluence 7.80e-07 erg/cm² Fermi_GBM
fluence_error 2.08e-08 erg/cm² Fermi_GBM
T100 3.31 s
GBM_located False
mjd 60648.15231376157 GCN_circulars,Konus-Wind Det
Fermi GBM table
GRB_name_Fermi GRB241204152
trigger_name bn241204152
ra 316.5000°
decl 6.5500°
pos_error 4.64e+00°
datum 2024-12-04
t_trigger 3:39:22.515 UTC
T90 0.768 s
T90_error 0.143 s
T90_start 3:39:22.451 UTC
fluence 7.80e-07 erg/cm²
fluence_error 2.08e-08 erg/cm²
flux_1024 5.20e+00 erg/cm²/s
flux_1024_error 2.70e-01 erg/cm²/s
flux_1024_time -6.40e-02 erg/cm²/s
flux_64 4.14e+01 erg/cm²/s
flux_64_error 2.18e+00 erg/cm²/s
IPN table
GRB_name GRB241204A
ra 316.5000°
decl 6.5500°
pos_error 5.00e-01°
GCN 38436 table
GRB_name GRB241204A
GCN_number 38436
Detection_method Fermi LAT Det
t_trigger 3:39:22.510 UTC
ra 316.5000°
decl 6.5500°
Circular_text TITLE: GCN CIRCULAR NUMBER: 38436 SUBJECT: GRB 241204A: Fermi-LAT detection DATE: 24/12/04 09:26:19 GMT FROM: Elisabetta Bissaldi at Politecnico and INFN Bari E. Bissaldi (Politecnico and INFN Bari), A. Holzmann Airasca (UniTrento and INFN Bari) and T. Khalil (Johannesburg Univ) report on behalf of the Fermi-LAT Collaboration: On Dec 4, 2024, Fermi-LAT detected high-energy emission from GRB 241204A, which was also detected by Fermi-GBM (trigger 754976367 / 241204.152). The best LAT on-ground location is found to be: RA, Dec = 316.50, 6.55 (J2000), with an error radius of 0.5 deg (90 % containment, statistical error only). This was 26 deg from the LAT boresight at the time of the GBM trigger (T0 = 03:39:22.51 UT). The data from the Fermi-LAT show a significant increase in the event rate that is spatially and temporally correlated with the GBM emission with high significance. The photon flux above 100 MeV in the time interval 0 - 350 s after the GBM trigger is (1.7 +/- 0.4) E-5 ph/cm2/s. The estimated photon index above 100 MeV is 2.8 +/- 0.4. The highest-energy photon is a 260 MeV event which is observed ~16 seconds after the GBM trigger. The Fermi-LAT point of contact for this burst is Tamador Khalil (tamtam2030@gmail.com). 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 38440 table
GRB_name GRB241204A
GCN_number 38440
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 38440 SUBJECT: Fermi GRB 241204A: Global MASTER-Net observations report DATE: 24/12/04 16:30:42 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V.Lipunov, E.Gorbovskoy, N.Tiurina, P.Balanutsa, , D.Vlasenko, I.Panchenko, A.Kuznetsov, G.Antipov, A.Sankovich, A.Sosnovskij, Yu.Tselik, M.Gulyaev, Ya.Kechin, V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU), O.Gress, N.Budnev (ISU), C.Francile, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity) D.Buckley (SAAO), R.Rebolo (The Instituto de Astrofisica de Canarias), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory) 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) started inspect of the Fermi GRB 241204A ( E. Bissaldi et al., GCN 38436) errorbox 39000 sec after notice time and 40326 sec after trigger time at 2024-12-04 14:51:28 UT, with upper limit up to 19.8 mag. Observations started at twilight. The observations began at zenith distance = 41 deg. The sun altitude is -13.4 deg. The galactic latitude b = -26 deg., longitude l = 53 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2695247 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 40356 | 2024-12-04 14:51:28 | MASTER-Kislovodsk | (21h 05m 11.61s , +06d 39m 14.6s) | C | 60 | 17.3 | 40617 | 2024-12-04 14:55:49 | MASTER-Kislovodsk | (21h 05m 10.85s , +06d 36m 35.4s) | C | 60 | 17.7 | 40677 | 2024-12-04 14:55:49 | MASTER-Kislovodsk | (21h 05m 10.85s , +06d 36m 35.3s) | C | 180 | 18.4 | Coadd 41157 | 2024-12-04 14:55:49 | MASTER-Kislovodsk | (21h 05m 10.84s , +06d 36m 35.4s) | C | 1140 | 19.8 | Coadd 40697 | 2024-12-04 14:57:09 | MASTER-Kislovodsk | (21h 05m 17.71s , +06d 36m 52.8s) | C | 60 | 17.8 | 40776 | 2024-12-04 14:58:28 | MASTER-Kislovodsk | (21h 05m 13.79s , +06d 38m 06.3s) | C | 60 | 17.7 | 40856 | 2024-12-04 14:59:48 | MASTER-Kislovodsk | (21h 05m 14.85s , +06d 36m 37.2s) | C | 60 | 17.8 | 40976 | 2024-12-04 14:59:48 | MASTER-Kislovodsk | (21h 05m 14.85s , +06d 36m 37.1s) | C | 300 | 19.0 | Coadd 40966 | 2024-12-04 15:01:08 | MASTER-Kislovodsk | (21h 05m 17.13s , +06d 38m 07.3s) | C | 120 | 18.4 | 41105 | 2024-12-04 15:03:27 | MASTER-Kislovodsk | (21h 05m 12.10s , +06d 37m 15.1s) | C | 120 | 18.5 | 41245 | 2024-12-04 15:05:47 | MASTER-Kislovodsk | (21h 05m 11.16s , +06d 38m 11.1s) | C | 120 | 18.4 | 41365 | 2024-12-04 15:05:47 | MASTER-Kislovodsk | (21h 05m 11.16s , +06d 38m 11.1s) | C | 360 | 19.2 | Coadd 41385 | 2024-12-04 15:08:07 | MASTER-Kislovodsk | (21h 05m 18.09s , +06d 37m 07.3s) | C | 120 | 18.5 | 41525 | 2024-12-04 15:10:27 | MASTER-Kislovodsk | (21h 05m 11.35s , +06d 36m 04.7s) | C | 120 | 18.5 | 41665 | 2024-12-04 15:12:47 | MASTER-Kislovodsk | (21h 05m 18.32s , +06d 36m 12.3s) | C | 120 | 18.6 | 41725 | 2024-12-04 15:12:47 | MASTER-Kislovodsk | (21h 05m 18.32s , +06d 36m 12.3s) | C | 240 | 19.0 | Coadd 41774 | 2024-12-04 15:15:06 | MASTER-Kislovodsk | (21h 05m 14.44s , +06d 37m 37.2s) | C | 60 | 18.0 | 41854 | 2024-12-04 15:16:26 | MASTER-Kislovodsk | (21h 05m 15.52s , +06d 36m 04.1s) | C | 60 | 18.0 | 41934 | 2024-12-04 15:17:46 | MASTER-Kislovodsk | (21h 05m 18.53s , +06d 37m 41.4s) | C | 60 | 18.0 | 42114 | 2024-12-04 15:17:46 | MASTER-Kislovodsk | (21h 05m 18.51s , +06d 37m 41.2s) | C | 420 | 19.5 | Coadd 42073 | 2024-12-04 15:19:05 | MASTER-Kislovodsk | (21h 05m 12.75s , +06d 36m 52.9s) | C | 180 | 18.8 | 42273 | 2024-12-04 15:22:25 | MASTER-Kislovodsk | (21h 05m 11.88s , +06d 37m 48.3s) | C | 180 | 18.8 | 42473 | 2024-12-04 15:25:45 | MASTER-Kislovodsk | (21h 05m 18.89s , +06d 36m 44.0s) | C | 180 | 18.8 | 43655 | 2024-12-04 15:46:27 | MASTER-Kislovodsk | (20h 46m 30.15s , +05d 04m 06.4s) | C | 60 | 17.7 | 44775 | 2024-12-04 16:05:07 | MASTER-Kislovodsk | (20h 54m 32.68s , +05d 03m 31.1s) | C | 60 | 17.5 | 44855 | 2024-12-04 16:06:27 | MASTER-Kislovodsk | (20h 46m 28.95s , +05d 04m 25.4s) | C | 60 | 17.8 | 44935 | 2024-12-04 16:07:47 | MASTER-Kislovodsk | (20h 54m 29.51s , +05d 02m 58.9s) | C | 60 | 17.7 | 45014 | 2024-12-04 16:09:06 | MASTER-Kislovodsk | (20h 46m 31.91s , +05d 04m 23.6s) | C | 60 | 17.8 | 45154 | 2024-12-04 16:10:26 | MASTER-Kislovodsk | (20h 58m 42.92s , +03d 10m 49.9s) | C | 180 | 18.2 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
GCN 38441 table
GRB_name GRB241204A
GCN_number 38441
Detection_method Fermi GBM Det
t_trigger 3:39:22.510 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 38441 SUBJECT: GRB 241204A: Fermi GBM Observation DATE: 24/12/04 21:07:30 GMT FROM: Matt Godwin Matt Godwin (UAH), E. Bissaldi (Politecnico and INFN Bari), and C. Meegan (UAH) report on behalf of the Fermi Gamma-ray Burst Monitor Team: "At 03:39:22.51 UT on 04 December 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 241204A (trigger 754976367/241204152). which was also detected by Fermi-LAT (E. Bissaldi et al. 2024, GCN 38436). The Fermi GBM on-ground location is consistent with the Fermi-LAT position. The angle from the Fermi LAT boresight is 26 degrees. The GBM light curve consists of two peaks with a duration (T90) of about 0.8 s (50-300 keV). The time-averaged spectrum from T0-0.4 to T0+1.0 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -1.31 +/- 0.04 and the cutoff energy, parameterized as Epeak, is 3453 +/- 1070 keV. The event fluence (10-1000 keV) in this time interval is (2.22 +/- 0.09)E-06 erg/cm^2. The 64-ms peak photon flux measured starting from T0+0.64 s in the 10-1000 keV band is 41 +/- 2 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 38445 table
GRB_name GRB241204A
GCN_number 38445
Detection_method Optical
Circular_text TITLE: GCN CIRCULAR NUMBER: 38445 SUBJECT: GRB 241204A: COLIBRÍ Optical Upper Limit DATE: 24/12/05 21:16:51 GMT FROM: Dornic Damien Francesco Magnani (CPPM), J.-G. Ducoin (CPPM), Damien Dornic (CPPM), Alan M. Watson (UNAM), Margarita Pereyra (UNAM), Stéphane Basa (UAR Pytheas), William H. Lee (UNAM), S. Antier (OCA), Jean-Luc Atteia (IRAP), Nathaniel R. Butler (ASU), Francis Fortin (IRAP), Simona Lombardo (LAM), and report: We imaged the field of GRB 241204A detected by Fermi/LAT (Bissaldi et al., GCN 38436) and Fermi/GBM (Godwin et al., GCN 38441) during the commissioning of the COLIBRÍ (SVOM/F-GFT) telescope at the Observatorio Astronómico Nacional on the Sierra de San Pedro Mártir in Mexico. The observations started 23.9 hours after the GRB trigger. We obtained 1200 seconds of exposure with the engineering test camera in a red filter that approximates SDSS r. The observation covers 13 arcmin field of view centered to the LAT coordinates. The data were reduced using custom software and then analysed and calibrated against the PS1 catalog using the STDWeb service (Karpov et al. 2022). We estimate an upper limit of 20.6 mag (10 sigma). This limiting magnitude is consistent with other optical observations of MASTER (Lipunov et al., GCN Circ. 38440) and DDOTI (Becerra et al., GCN Circ. 38442). We warmly thank the COLIBRI engineering team and the staff of the Observatorio Astronómico Nacional on the Sierra de San Pedro Mártir.
GCN 38631 table
GRB_name GRB241204A
GCN_number 38631
Detection_method Konus-Wind Det
t_trigger 3:39:19.909 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 38631 SUBJECT: Konus-Wind detection of GRB 241204A (short/hard) DATE: 24/12/19 08:22:13 GMT FROM: Dmitry Svinkin at Ioffe Institute V. Panteleeva, D. Frederiks, A. Lysenko, A. Ridnaia, D. Svinkin, A. Tsvetkova, M. Ulanov, and T. Cline, on behalf of the Konus-Wind team, report: The short-duration GRB 241204A (Fermi-LAT detection: Bissaldi et al., GCN 38436; Fermi-GBM detection: Godwin et al., GCN 38441) triggered Konus-Wind at T0=13159.909 s UT (03:39:19.909). The burst light curve shows a single pulse which starts at ~T0 and has a total duration of ~0.1 s. The emission is seen up to ~7 MeV. The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB241204_T13159/ As observed by Konus-Wind, the burst had a fluence of 6.20(-1.01,+1.11)x10^-6 erg/cm2, and a 16-ms peak flux, measured from T0+0.004 s, of 1.45(-0.34,+0.37)x10^-4 erg/cm2/s (both in the 20 keV - 10 MeV energy range). The time-averaged spectrum of the burst (measured from T0 to T0+0.064 s) is best fit in the 20 keV - 10 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = -1.22(-0.11,+0.12) and Ep = 3550(-1308,+4267) keV (pgstat = 62/73 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -1.62 (pgstat = 62/72 dof). All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.