IPN triangulation of GRB 220521B
Abstract
Report long-duration GRB 220521B has been detected by Konus-Wind, INTEGRAL (SPI-ACS), and Mars-Odyssey (HEND), so far, at about 54210 s UT (15:03:30). We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 55.464 (03h 41m 51s) +38.990 (+38d 59' 25") Corners: 57.749 (03h 51m 00s) +34.608 (+34d 36' 29") 52.895 (03h 31m 35s) +43.109 (+43d 06' 34") 52.823 (03h 31m 18s) +43.047 (+43d 02' 49") 57.684 (03h 50m 44s) +34.535 (+34d 32' 05") --------------------------------------------- The error box area is 2520 sq. arcmin, and its maximum dimension is 9.3 deg (the minimum one is 5 arcmin). The Sun distance was 14 deg. This box may be improved. A triangulation map and HEALPix FITS file are posted at http://www.ioffe.ru/LEA/GRBs/GRB220521_T54209/IPN/ The time history and spectrum will be given in forthcoming GCN Circulars.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- May 2022
- Bibcode:
- 2022GCN.32104....1K