TITLE: GCN CIRCULAR NUMBER: 36814 SUBJECT: IPN triangulation of GRB 240627A DATE: 24/07/03 17:35:46 GMT FROM: Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru> A.S. Kozyrev, D.V. Golovin, M.L. Litvak, I.G. Mitrofanov, and A.B. Sanin on behalf of the HEND/Mars Odyssey team, D. Svinkin, D. Frederiks, A. Ridnaia, A. Lysenko, and T. Cline on behalf of the Konus-Wind team, A. Goldstein, M. S. Briggs, C. Wilson-Hodge, and E. Burns on behalf of the Fermi GBM team, E. Bozzo and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, S. Barthelmy, J. Cummings, H. Krimm, D. Palmer, and A. Tohuvavohu on behalf of the Swift-BAT team, G. Waratkar, V. Jethwani, J.Joshi, V. Bhalerao, D. Bhattacharya, and S. Vadawale, on behalf of the Astrosat-CZTI team, and W. Boynton, C. Fellows, K. Harshman, H. Enos, R. Starr, and A.S. Gardner on on behalf of the GRS-Odyssey GRB team, report: The bright, long-duration GRB 240627A (AstroSat-CZTI detection: Joshi et al., GCN 36776; NuSTAR anti-coincidence shields detection: Grefenstette, GCN 36778; CALET-CGBM detection: Kobayashi et al., GCN 36798) was detected by Astrosat (CZTI), Konus-Wind, INTEGRAL (SPI-ACS), NuSTAR (ACS), CALET (CGBM), and Mars-Odyssey (HEND) at about 86341 s UT (23:59:01). We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 164.155 (10h 56m 37s) +72.806 (+72d 48' 23") Corners: 166.270 (11h 05m 05s) +73.674 (+73d 40' 25") 166.346 (11h 05m 23s) +73.611 (+73d 36' 38") 162.228 (10h 48m 55s) +71.917 (+71d 55' 02") 162.147 (10h 48m 35s) +71.979 (+71d 58' 45") --------------------------------------------- The error box area is 416 sq. arcmin, and its maximum dimension is 2.1 deg (the minimum one is 3.4 arcmin). The Sun distance was 60 deg. This localization may be improved. A triangulation map and HEALPix FITS file are posted at http://www.ioffe.ru/LEA/GRBs/GRB240627_T86332/IPN The HEALPix triangulation map is the multi-order HEALPix in units of probability density. The Konus-Wind time history and spectrum will be given in a forthcoming GCN Circular. View this GCN Circular online at https://gcn.nasa.gov/circulars/36814. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...