GRB 240407A
GCN Circular 36044
Subject
GRB 240407A: Fermi GBM Final Real-time Localization
Date
2024-04-07T01:10:24Z (a year ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
Via
email
The Fermi GBM team reports the detection of a likely LONG GRB
At 00:59:51 UT on 7 Apr 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240407A (trigger 734144396.810938 / 240407042).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 352.3, Dec = 44.9 (J2000 degrees, equivalent to J2000 23h 29m, 44d 53'), with a statistical uncertainty of 1.7 degrees.
The angle from the Fermi LAT boresight is 88.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240407042/quicklook/glg_skymap_all_bn240407042.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240407042/quicklook/glg_healpix_all_bn240407042.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240407042/quicklook/glg_lc_medres34_bn240407042.gif
GCN Circular 36045
Subject
Fermi GRB 240407A: Global MASTER-Net observations report
Date
2024-04-07T02:45:42Z (a year ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
legacy email
V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik, D. Vlasenko,
G.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij
(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. Gress, N.M. Budnev, O.Ershova
(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),
V. Yurkov, A. Gabovich
(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) started inspect of the Fermi GRB 240407A ( Fermi GBM team, GCN 36044) errorbox 26 sec after notice time and 73 sec after trigger time at 2024-04-07 01:01:05 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 66 deg. The sun altitude is -18.3 deg.
MASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 240407A errorbox 96 sec after notice time and 144 sec after trigger time at 2024-04-07 01:02:16 UT, with upper limit up to 19.1 mag. The observations began at zenith distance = 69 deg. The sun altitude is -22.5 deg.
The galactic latitude b = -15 deg., longitude l = 109 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2416508
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
79 | 2024-04-07 01:01:05 | MASTER-Kislovodsk | (23h 32m 39.83s , +47d 04m 24.7s) | C | 10 | 15.1 |
79 | 2024-04-07 01:01:05 | MASTER-Kislovodsk | (23h 38m 18.06s , +46d 40m 40.3s) | C | 10 | 16.3 |
109 | 2024-04-07 01:01:05 | MASTER-Kislovodsk | (23h 38m 18.06s , +46d 40m 40.2s) | C | 70 | 17.5 | Coadd
114 | 2024-04-07 01:01:36 | MASTER-Kislovodsk | (23h 38m 15.40s , +46d 42m 04.5s) | C | 20 | 16.7 |
115 | 2024-04-07 01:01:36 | MASTER-Kislovodsk | (23h 32m 37.08s , +47d 05m 49.7s) | C | 20 | 15.5 |
140 | 2024-04-07 01:01:36 | MASTER-Kislovodsk | (23h 32m 37.08s , +47d 05m 49.7s) | C | 70 | 16.0 | Coadd
159 | 2024-04-07 01:02:16 | MASTER-Tavrida | (23h 35m 26.07s , +47d 13m 42.4s) | C | 30 | 17.7 |
166 | 2024-04-07 01:02:22 | MASTER-Kislovodsk | (23h 34m 12.10s , +44d 47m 19.9s) | P| | 30 | 16.3 |
205 | 2024-04-07 01:02:56 | MASTER-Tavrida | (23h 25m 50.18s , +44d 56m 12.4s) | C | 40 | 18.2 |
221 | 2024-04-07 01:03:13 | MASTER-Kislovodsk | (23h 38m 21.46s , +46d 42m 31.3s) | C | 40 | 17.2 |
221 | 2024-04-07 01:03:13 | MASTER-Kislovodsk | (23h 32m 42.10s , +47d 06m 14.2s) | C | 40 | 15.6 |
287 | 2024-04-07 01:04:13 | MASTER-Kislovodsk | (23h 38m 15.32s , +46d 41m 33.6s) | C | 50 | 17.2 |
287 | 2024-04-07 01:04:13 | MASTER-Kislovodsk | (23h 32m 36.04s , +47d 05m 16.4s) | C | 50 | 15.6 |
363 | 2024-04-07 01:05:25 | MASTER-Kislovodsk | (23h 38m 15.55s , +46d 42m 33.8s) | C | 60 | 17.4 |
363 | 2024-04-07 01:05:25 | MASTER-Kislovodsk | (23h 32m 36.12s , +47d 06m 17.0s) | C | 60 | 16.0 |
821 | 2024-04-07 01:12:17 | MASTER-Tavrida | (23h 25m 56.16s , +44d 55m 51.6s) | C | 150 | 19.1 |
1580 | 2024-04-07 01:25:41 | MASTER-Kislovodsk | (23h 35m 57.51s , +44d 57m 58.9s) | C | 60 | 16.1 |
1580 | 2024-04-07 01:25:41 | MASTER-Kislovodsk | (23h 41m 24.62s , +44d 33m 59.5s) | C | 60 | 17.2 |
1660 | 2024-04-07 01:27:01 | MASTER-Kislovodsk | (23h 32m 48.85s , +43d 03m 11.1s) | C | 60 | 15.9 |
1660 | 2024-04-07 01:27:01 | MASTER-Kislovodsk | (23h 38m 05.44s , +42d 39m 11.0s) | C | 60 | 17.0 |
1741 | 2024-04-07 01:28:22 | MASTER-Kislovodsk | (23h 18m 29.88s , +46d 52m 36.1s) | C | 60 | 16.2 |
1741 | 2024-04-07 01:28:22 | MASTER-Kislovodsk | (23h 24m 09.97s , +46d 28m 38.3s) | C | 60 | 17.2 |
1821 | 2024-04-07 01:29:42 | MASTER-Kislovodsk | (23h 14m 29.30s , +44d 57m 47.8s) | C | 60 | 16.0 |
1821 | 2024-04-07 01:29:42 | MASTER-Kislovodsk | (23h 19m 57.98s , +44d 33m 52.2s) | C | 60 | 17.2 |
1901 | 2024-04-07 01:31:02 | MASTER-Kislovodsk | (23h 40m 42.22s , +46d 49m 58.8s) | C | 60 | 15.7 |
1901 | 2024-04-07 01:31:02 | MASTER-Kislovodsk | (23h 46m 20.74s , +46d 25m 54.7s) | C | 60 | 16.8 |
1981 | 2024-04-07 01:32:23 | MASTER-Kislovodsk | (23h 12m 09.93s , +43d 03m 11.9s) | C | 60 | 15.9 |
1981 | 2024-04-07 01:32:23 | MASTER-Kislovodsk | (23h 17m 28.24s , +42d 39m 17.9s) | C | 60 | 17.0 |
2062 | 2024-04-07 01:33:43 | MASTER-Kislovodsk | (23h 30m 24.58s , +48d 22m 17.6s) | C | 60 | 16.5 |
2463 | 2024-04-07 01:40:24 | MASTER-Kislovodsk | (23h 35m 56.74s , +44d 57m 25.5s) | C | 60 | 15.1 |
2463 | 2024-04-07 01:40:24 | MASTER-Kislovodsk | (23h 41m 24.46s , +44d 33m 25.3s) | C | 60 | 16.2 |
2623 | 2024-04-07 01:43:04 | MASTER-Kislovodsk | (23h 32m 55.39s , +43d 02m 46.5s) | C | 60 | 15.0 |
2623 | 2024-04-07 01:43:04 | MASTER-Kislovodsk | (23h 38m 12.58s , +42d 38m 48.4s) | C | 60 | 16.0 |
2703 | 2024-04-07 01:44:25 | MASTER-Kislovodsk | (23h 18m 31.66s , +46d 52m 37.3s) | C | 60 | 14.9 |
2703 | 2024-04-07 01:44:25 | MASTER-Kislovodsk | (23h 24m 12.78s , +46d 28m 40.9s) | C | 60 | 16.0 |
2784 | 2024-04-07 01:45:45 | MASTER-Kislovodsk | (23h 14m 27.19s , +44d 57m 14.5s) | C | 60 | 14.1 |
2784 | 2024-04-07 01:45:45 | MASTER-Kislovodsk | (23h 19m 55.94s , +44d 33m 21.2s) | C | 60 | 15.9 |
2864 | 2024-04-07 01:47:05 | MASTER-Kislovodsk | (23h 46m 27.01s , +46d 28m 03.3s) | C | 60 | 15.5 |
2944 | 2024-04-07 01:48:25 | MASTER-Kislovodsk | (23h 17m 21.90s , +42d 40m 35.5s) | C | 60 | 15.5 |
3024 | 2024-04-07 01:49:46 | MASTER-Kislovodsk | (23h 30m 22.68s , +48d 23m 01.0s) | C | 60 | 15.2 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.
GCN Circular 36047
Subject
GRB 240407A: BALROG localization (Fermi Trigger 734144396 / GRB 240407042)
Date
2024-04-07T10:10:49Z (a year ago)
From
Jochen Greiner at MPE <jcgrog@mpe.mpg.de>
Via
email
T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
734144396 at 00:59:51 on 07 April 2024 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 is:
RA(2000.0) = 347.0 deg
Decl.(2000.0) = 43.9 deg
The 1 sigma statistical error radius is 1.9 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB240407042/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB240407042/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB240407042/json
GCN Circular 36357
Subject
GRB 240407A: VZLUSAT-2 detection
Date
2024-05-01T08:58:40Z (a year ago)
From
Marianna Dafčíková at Masaryk University <500025@mail.muni.cz>
Via
Web form
M. Dafcikova, 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, 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 240407A (Fermi/GBM detection: GCN 36044; Konus/Wind detection trigger at 2024-04-07 00:59:52.851 UT; INTEGRAL/SPI-ACS peak detection at 2024-04-07 ~00:59:58 UT) 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 the GRB detector unit no. 1. The detection was confirmed at the peak time 2024-04-07 00:59:52 UTC. The T90 duration is 13 s and the significance during T90 reaches 24 sigma.
The light curve obtained by VZLUSAT-2 is available here:
https://vzlusat2.konkoly.hu/static/share/GRB240407A_GCN_VZLUSAT2.pdf
All VZLUSAT-2 detections are listed at: https://monoceros.physics.muni.cz/hea/VZLUSAT-2/
The GRB detectors on VZLUSAT-2 are a demonstration payload for a future CubeSat 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.