TITLE: GCN CIRCULAR NUMBER: 12634 SUBJECT: GRB 111209A: REM NIR detection DATE: 11/12/09 08:05:21 GMT FROM: Stefano Covino at Brera Astronomical Observatory D. Fugazza, S. Covino (INAF/OAB), E. Palazzi (INAF/IASF-Bo), L.A. Antonelli (INAF/Rome), on behalf of a larger collaboration, report: The robotic 60-cm REM telescope located at La Silla (Chile) observed automatically the field of GRB 111209A (Hoversten et al. GCN 12632) with the ROSS optical and REMIR near-infrared cameras in imaging mode. Observations started about 30 s after the Swift alert (about 5 min after the reported burst time) when the field was only 13 deg on the local horizon. Summing H band images from 7 to 13 min after the burst a weak counterpart is visible at coordinates RA=00:57:22.78 DEC=-46:48:04.2 (error approximately 0.5 arcsec on both axes) and with magnitude H = 14.7 +- 0.2, calibrated against the 2MASS catalogue. The source is coincident with the optical counterpart reported by Klotz et al. (GCN 12633). Further observations are in progress. [GCN OPS NOTE(09dec11): Per author's request, LA was added to the author list.]