TITLE: GCN CIRCULAR NUMBER: 12880 SUBJECT: GRB 120119A: Swift/UVOT Observations DATE: 12/01/19 20:29:33 GMT FROM: Margaret Chester at PSU M. M. Chester (PSU) and A. P. Beardmore (U Leicester) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 120119A 62 s after the BAT trigger (Beardmore et al., GCN Circ. 12859). A source consistent with the XRT position (Beardmore et al., GCN Circ. 12876) is detected in the initial UVOT exposures. The preliminary UVOT position is: RA (J2000) = 08:00:06.93 = 120.02889 (deg.) Dec (J2000) = -09:04:53.7 = -9.08159 (deg.) with an estimated uncertainty of 0.59 arc sec. (radius, 90% confidence). Preliminary detections and 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) are: Filter T_start(s) T_stop(s) Exp(s) Mag white_FC 62 211 147 19.5 +/- 0.1 white 62 1997 205 19.5 +/- 0.1 white 6130 30955 1112 21.9 +/- 0.4 v 1682 2048 58 >19.1 v 7810 12009 926 >20.8 b 1608 1973 58 19.4 +/- 0.3 b 5926 30829 1967 >22.0 u_FC 273 302 28 >18.7 u 273 1948 66 >19.3 u 5720 29917 1967 >21.7 w1 1731 1923 39 >19.1 w1 12921 25179 1511 >21.5 m2 1706 2073 58 >19.3 m2 12014 12914 885 >21.2 w2 1658 2022 58 >19.5 w2 6336 7804 242 >20.6 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.11 in the direction of the burst (Schlegel et al. 1998).