Skip to main content
New! Browse Circulars by Event, Advanced Search, Sample Codes, Schema Release. See news and announcements

GRB 201217A

GCN Circular 29078

Subject
GRB 201217A: Fermi GBM Final Localization
Date
2020-12-17T22:35:27Z (4 years ago)
From
Joshua Wood at MSFC/Fermi-GBM <joshua.r.wood@nasa.gov>
The Fermi GBM team reports the detection of a likely LONG GRB

At 02:35:03.51 UT on 17 Dec 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 201217A (trigger 629865308 / 201217108).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 273.3, Dec = -65.1 (J2000 degrees, equivalent to J2000 18h 13m, -65d 05'), with a statistical uncertainty of 3.2 degrees.

The angle from the Fermi LAT boresight is 82.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201217108/quicklook/glg_skymap_all_bn201217108.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/bn201217108/quicklook/glg_healpix_all_bn201217108.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201217108/quicklook/glg_lc_medres34_bn201217108.gif

GCN Circular 29079

Subject
Fermi GRB 201217A: Global MASTER-Net observations report
Date
2020-12-18T01:30:28Z (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-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 201217A ( Fermi GBM team, GCN 29078) errorbox  30237 sec after notice time and 81228 sec after trigger time at 2020-12-18 01:08:52 UT, with upper limit up to  13.1 mag. The observations began at zenith distance = 73 deg. The sun  altitude  is -17.1 deg. 

The galactic latitude b = -21 deg., longitude l = 329 deg.


Real time updated cover map and OT discovered available here: 
https://master.sai.msu.ru/site/master2/observ.php?id=1505292

We obtain a following upper limits.  

Tmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________

   81259 | 2020-12-18 01:08:52 |         MASTER-OAFA | (18h 11m 02.61s , -66d 41m 50.5s) |   C |    60 | 13.1 |        
Filter C is a clear (unfiltred) band. 


The observation and reduction will continue. 
The message may be cited.

Looking for U.S. government information and services? Visit USA.gov