NOTE: uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 241113d15h04m45s562336usUT
NOTE: Source region spec. is: 16.56521 -22.67164 4"
NOTE: Used archived XRT position of  16.56521 -22.67164  4.00
NOTE: position reference is GCN_Circulars-38198
NOTE: Possible detection in wh at T+82.0

=========== Draft Upper Limit Circular ========

GRB 241113A: Swift/UVOT Upper Limits

A. A. Breeveld (UCL-MSSL) and M. H. Siegel (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 241113A
82 s after the BAT trigger (Siegel et al., GCN Circ. 38194).
No optical afterglow consistent with the XRT position
*** POSITION REFERENCE is GCN_Circulars-38198 ***
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

white               82          183          100         >15.8

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.030 in the direction of the burst
(Schlegel et al. 1998).


=========== Draft Detection Circular ========

GRB 241113A: Swift/UVOT Detection

A. A. Breeveld (UCL-MSSL) and M. H. Siegel (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 241113A
82 s after the BAT trigger (Siegel et al., GCN Circ. 38194).
A source consistent with the XRT position
*** POSITION REFERENCE is GCN_Circulars-38198 ***
is detected in the initial UVOT exposures.

The preliminary UVOT position is:
    RA  (J2000) =  01:06:15.64 =  16.56518 (deg.)
    Dec (J2000) = -22:40:18.6  = -22.67182 (deg.)
with an estimated uncertainty of 0.42 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

white               82          183          100         15.90 +/- 0.03

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.030 in the direction of the burst
(Schlegel et al. 1998).