GRB 241024B
GCN Circular 37856
Subject
GRB 241024B: Fermi GBM Final Localization
Date
2024-10-24T19:52:03Z (8 months ago)
From
Lorenzo Scotton at UAH <lscottongcn@outlook.com>
Via
Web form
The Fermi GBM team reports the detection of a likely SHORT GRB
"At 15:31:12.36 UT on 24 October 2024, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 241024B (trigger 751476677/241024647).
The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 162.80, Dec = -1.98 (J2000 degrees, equivalent to J2000 10h 51m, -1d 58'),
with a statistical uncertainty of 14.81 degrees.
The angle from the Fermi LAT boresight is 78 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241024647/quicklook/glg_skymap_all_bn241024647.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/bn241024647/quicklook/glg_healpix_all_bn241024647.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241024647/quicklook/glg_lc_medres34_bn241024647.gif"
GCN Circular 37861
Subject
Fermi GRB 241024B: Global MASTER-Net observations report
Date
2024-10-25T02:31:52Z (8 months 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-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB 241024B ( Fermi GBM team, GCN 37856) errorbox 22448 sec after notice time and 22476 sec after trigger time at 2024-10-24 21:45:49 UT, with upper limit up to 17.6 mag. The observations began at zenith distance = 67 deg. The sun altitude is -19.5 deg.
The galactic latitude b = 63 deg., longitude l = 240 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2648174
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
22507 | 2024-10-24 21:45:49 | MASTER-Tunka | (12h 01m 48.91s , +19d 18m 08.0s) | C | 60 | 17.2 |
23874 | 2024-10-24 22:08:36 | MASTER-Tunka | (12h 01m 47.15s , +19d 19m 31.4s) | C | 60 | 17.6 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.