TITLE: GCN CIRCULAR NUMBER: 17073 SUBJECT: IPN Triangulation of GRB 141118A DATE: 14/11/20 13:12:27 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley, on behalf of the IPN, I. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin, on behalf of the HEND-Odyssey GRB team, W. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr, on behalf of the GRS-Odyssey GRB team, S. Golenetskii, R. Aptekar, V. Pal'shin, D. Frederiks, D. Svinkin, and T. Cline on behalf of the Konus-Wind team, D. M. Smith, J. McTiernan, R. Schwartz, W. Hajdas, and A. Zehnder, on behalf of the RHESSI GRB team, S. Barthelmy, J. Cummings, N. Gehrels, H. Krimm, and D. Palmer, on behalf of the Swift-BAT team, J. Goldsten, on behalf of the MESSENGER NS GRB team, and V. Connaughton, M. S. Briggs, C. Meegan, and V. Pelassa, on behalf of the Fermi GBM team, report: GRB 141118A has been observed by Fermi GBM, Konus-Wind, RHESSI, Swift (outside the coded field of view), Odyssey (HEND), and MESSENGER (GRNS), so far, at 58550 s (16:15:50 UT) so far. We have triangulated it to a preliminary, 3 sigma error box whose area is 2890 sq. arcmin. and whose coordinates are: RA(2000) DEC(2000) CENTER: 156.874 o =10 h 27 m 30 s 19.079 o= 19 o 04 ' 45 " CORNERS: 157.620 o =10 h 30 m 29 s 21.134 o= 21 o 08 ' 01 " 156.676 o =10 h 26 m 42 s 19.104 o= 19 o 06 ' 15 " 157.071 o =10 h 28 m 17 s 19.054 o= 19 o 03 ' 13 " 155.644 o =10 h 22 m 35 s 15.768 o= 15 o 46 ' 06 " This error box may be improved. A map has been posted at ssl.berkeley.edu/ipn3/141118A. Details of this burst will be given in a forthcoming GCN Circular.