NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 200205d18h44m22s542717usUT NOTE: Source region spec. is: 130.17058 -35.27349 3" NOTE: Used archived uvot source position of 130.17058 -35.27349 3.00 NOTE: position reference is uvotdetect NOTE: A UVOT position was reported in uvotdetect NOTE: Possible detection in w2 at T+139.3 WARNING: t_start for light curve (126) and t_start from the exposure report (140) do not agree. Replace ??? in draft Circular with correct value. =========== Draft Upper Limit Circular ======== GRB 200205A: Swift/UVOT Upper Limits K. K. Simpson (PSU) and P. A. Evans (U. Leicester) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 200205A ***???*** s after the BAT trigger (Evans et al., GCN Circ. 26982). No optical afterglow consistent with the XRT position (Evans et al. GCN Circ. 26982) is detected in the initial UVOT exposures. Preliminary 3-sigma upper limits using the UVOT photometric system (Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures are: Filter T_start(s) T_stop(s) Exp(s) Mag w2 126 389 256 >16.9 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.45 in the direction of the burst (Schlegel et al. 1998). =========== Draft Detection Circular ======== GRB 200205A: Swift/UVOT Detection K. K. Simpson (PSU) and P. A. Evans (U. Leicester) report on behalf of the Swift/UVOT team: The Swift/UVOT began settled observations of the field of GRB 200205A ***???*** s after the BAT trigger (Evans et al., GCN Circ. 26982). A source consistent with the XRT position (Evans et al. GCN Circ. 26982) is detected in the initial UVOT exposures. The preliminary UVOT position is: RA (J2000) = 08:40:40.96 = 130.17068 (deg.) Dec (J2000) = -35:16:25.0 = -35.27362 (deg.) with an estimated uncertainty of 0.47 arc sec. (radius, 90% confidence). Preliminary detections 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 w2 139 389 246 17.09 +/- 0.09 The magnitudes in the table are not corrected for the Galactic extinction due to the reddening of E(B-V) = 0.45 in the direction of the burst (Schlegel et al. 1998).