TITLE: GCN CIRCULAR NUMBER: 14030 SUBJECT: GRB 121201A: Swift/UVOT Detection DATE: 12/12/02 00:48:41 GMT FROM: Paul Kuin at MSSL N. P. M. Kuin (MSSL-UCL) reports on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 121201A 120 s after the BAT trigger (Yershov et al., GCN Circ. 14025). A source consistent with the XRT position is detected in the initial UVOT exposures. The preliminary UVOT position is: RA (J2000) = 00:53:52.16 = 13.46732 (deg.) Dec (J2000) = -42:56:34.5 = -42.94292 (deg.) with an estimated uncertainty of 0.62 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) for the early exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag white 120 270 147 20.3 +/- 0.2 white 558 578 20 19.9 +/- 0.4 white 5689 5888 200 21.3 +/- 0.4 v 608 1080 59 >19.6 b 534 1178 58 19.4 +/- 0.2 u 278 528 125 >24.8 u 6714 6914 200 20.6 +/- 0.5 w1 830 6710 432 >21.3 m2 632 6504 413 >21.1 w2 1036 6094 413 >20.8 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.01 in the direction of the burst (Schlegel et al. 1998). [GCN OPS NOTE(17feb13): The "A" was added to the GRB name in the Subject-line and in the body of the Circular.]