Improved IPN triangulation of GRB 240227A (short)

Report: Using the BepiColombo (MGNS) data we have improved the previous IPN error box (Svinkin et al., GCN 35821). The coordinates of the updated 3 sigma error box are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 18.725 (01h 14m 54s) -34.410 (-34d 24' 34") Corners: 18.512 (01h 14m 03s) -35.909 (-35d 54' 32") 18.933 (01h 15m 44s) -33.175 (-33d 10' 30") 18.900 (01h 15m 36s) -32.912 (-32d 54' 42") 18.488 (01h 13m 57s) -35.644 (-35d 38' 37") --------------------------------------------- The error box area is 561 sq. arcmin, and its maximum dimension is 3.01 deg (the minimum one is 3.4 arcmin). The Sun distance was 44 deg. This box may be further improved. Updated triangulation map and HEALPix FITS files are posted at http://www.ioffe.ru/LEA/GRBs/GRB240227_T16812/IPN/