NOTE: uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 250703d12h46m13s022772usUT
NOTE: Source region spec. is: 212.93622 16.74861 3"
NOTE: Used archived uvot source position of 212.93622  16.74861  3.00
NOTE: position reference is GCN_Circ_40894
NOTE: A UVOT position was reported in GCN_Circ_40894
NOTE: Possible detection in vv at T+5903.9
NOTE: Possible detection in m2 at T+9608.8
NOTE: Possible detection in uu at T+309.3
NOTE: Possible detection in bb at T+3877.7
NOTE: Possible detection in wh at T+97.4

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

GRB 250702F: Swift/UVOT Upper Limits

***UBS*** (***INSTITUTION***) and N. J. Klingler (GSFC/UMBC/CRESSTII)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 250702F
97 s after the BAT trigger (Klingler et al., GCN Circ. 40894).
No optical afterglow consistent with the XRT position
*** POSITION REFERENCE is GCN_Circulars-40902 ***
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 first
finding chart (FC) exposure and subsequent exposures are:

Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

white_FC            97          247          147         >15.8
u_FC               309          515          202         >15.0
white               97         4188          251         >16.4
v                 5904         6104          197         >18.0
b                 3878         4077          197         >18.2
u                  309          515          202         >15.0
m2                9609        10131          514         >18.9
w2                5699         5899          197         >19.2

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.017 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 250702F: Swift/UVOT Detection

***UBS*** (***INSTITUTION***) and N. J. Klingler (GSFC/UMBC/CRESSTII)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 250702F
97 s after the BAT trigger (Klingler et al., GCN Circ. 40894).
A source consistent with the XRT position
*** POSITION REFERENCE is GCN_Circulars-40902 ***
is detected in the initial UVOT exposures.

The preliminary UVOT position is:
    RA  (J2000) =  14:11:44.66 = 212.93610 (deg.)
    Dec (J2000) = +16:44:55.1  =  16.74863 (deg.)
with an estimated uncertainty of 0.42 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               97          247          147         15.86 +/- 0.02
v                 5904         6104          197         18.39 +/- 0.14
b                 3878         4077          197         18.42 +/- 0.09
u                  309          515          202         15.04 +/- 0.03
m2                9609        10131          514         19.53 +/- 0.24
w2                5699         5899          197        >19.2

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.017 in the direction of the burst
(Schlegel et al. 1998).