GCN Circular 17217
V. D'Elia (ASDC), L. Izzo (URoma/ICRA) & M. M. Chester (PSU) report on behalf of the Swift team Swift-XRT observed again the field of the IPN GRB 141215A (Hurley et ��al. GCN 17186). The observation started on 2014-12-21 at 01:22UT, i.e., ~5.5 days after the burst detection. Source #1 (that with a 2MASS counterpart) and source #3 (which has a DSS counterpart) reported by D'Elia & Izzo (GCN 17190) are still detected with a count rate comparable to that of the first exposure and are thus not related with the GRB. On the other hand, source #2 faded considerably with respect to the first observation. Its decay index is alpha~1, which is consistent with a typical afterglow behavior. We thus conclude that source #2 is the X-ray counterpart of GRB 141215A. Swift/UVOT observed the initial two tiled fields for GRB 141215A beginning ~100 ks after the IPN trigger. No optical counterpart was detected for Swift/XRT Source #2 (D'Elia et al. GCN Circ. 17190). Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) are: Source #2: Filter T_start(s) T_stop(s) Exp(s) UL white 118715 125192 1026 > 21.35 v 119529 120370 824 > 19.39 u 117902 124472 1580 > 20.85 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.176 in the direction of the burst (Schlegel et al. 1998). Details on the XRT analysis can be found at: http://www.swift.ac.uk/xrt_products/TILED_GRB00035/ This is an official product of the Swift team.