GRB 201215A
GCN Circular 29046
Subject
GRB 201215A: Fermi GBM Final Real-time Localization
Date
2020-12-15T06:33:47Z (4 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely LONG GRB
At 06:23:28 UT on 15 Dec 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 201215A (trigger 629706213.838334 / 201215266).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 211.8, Dec = 42.4 (J2000 degrees, equivalent to J2000 14h 07m, 42d 23'), with a statistical uncertainty of 15.7 degrees.
The angle from the Fermi LAT boresight is 118.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201215266/quicklook/glg_skymap_all_bn201215266.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/bn201215266/quicklook/glg_healpix_all_bn201215266.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201215266/quicklook/glg_lc_medres34_bn201215266.gif
GCN Circular 29047
Subject
GRB 201215A: BALROG localization (Fermi Trigger 629706213 / GRB 201215266)
Date
2020-12-15T06:48:33Z (4 years ago)
From
Jochen Greiner at MPE,Garching <jcg@mpe.mpg.de>
J. Burgess, F. Kunzweiler, B. Biltzinger, F. Berlato, & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
629706213 at 06:23:28 on 15 Dec. 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) = 192.9+/-3.8 deg
Decl.(2000.0) = 18.1+/-3.8 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB201215266/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB201215266/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB201215266/json
GCN Circular 29051
Subject
Fermi GRB 201215A: Global MASTER-Net observations report
Date
2020-12-15T15:30:49Z (4 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
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-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 201215A ( Fermi GBM team, GCN 29046) errorbox 31642 sec after notice time and 31660 sec after trigger time at 2020-12-15 15:11:09 UT, with upper limit up to 17.8 mag. Observations started at twilight. The observations began at zenith distance = 77 deg. The sun altitude is -11.4 deg.
The galactic latitude b = 68 deg., longitude l = 81 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=1502976
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
31690 | 2020-12-15 15:11:09 | MASTER-Tavrida | (14h 27m 07.35s , +49d 45m 44.0s) | C | 60 | 16.8 |
32055 | 2020-12-15 15:17:13 | MASTER-Tavrida | (14h 27m 02.08s , +49d 46m 19.8s) | C | 60 | 17.3 |
32134 | 2020-12-15 15:18:32 | MASTER-Tavrida | (14h 39m 26.74s , +49d 47m 24.8s) | C | 60 | 17.5 |
32453 | 2020-12-15 15:23:51 | MASTER-Tavrida | (14h 39m 30.99s , +49d 45m 32.6s) | C | 60 | 17.8 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.