IPN triangulation of GRB 230919A (short)
Abstract
The short-duration GRB 230919A (Fermi-GBM detection: The Fermi GBM team, GCN Circ. 34737; Scotton et al., GCN Circ. 34750; AstroSat CZTI detection: Navaneeth et al., GCN Circ. 34742; Swift/BAT-GUANO detection: DeLaunay et al., GCN Circ. 34747) has been detected by Fermi (GBM trigger 716835508), Konus-Wind, Mars-Odyssey (HEND), Swift (BAT), and AstroSat (CZTI), so far, at about 61103 s UT (16:58:23). The burst was outside the coded field of view of the BAT. We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 71.620 (04h 46m 29s) +44.076 (+44d 04' 35") Corners: 70.812 (04h 43m 15s) +45.562 (+45d 33' 43") 70.802 (04h 43m 12s) +45.703 (+45d 42' 10") 72.402 (04h 49m 37s) +42.484 (+42d 29' 04") 72.411 (04h 49m 39s) +42.324 (+42d 19' 28") --------------------------------------------- The error box area is 543 sq. arcmin, and its maximum dimension is 3.6 deg (the minimum one is 3 arcmin). The Sun distance was 100 deg. The IPN localization is consistent with, but reduces the area of, the Fermi-GBM final localization (GCN Circ. 34737). This localization may be improved. A triangulation map and HEALPix FITS file are posted at http://www.ioffe.ru/LEA/GRBs/GRB230919_T61103/IPN/ The Konus-Wind time history and spectrum will be given in a forthcoming GCN Circular.
- Publication:
-
GRB Coordinates Network
- Pub Date:
- September 2023
- Bibcode:
- 2023GCN.34752....1K