NOTE: uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 251206d03h00m28s173505usUT
NOTE: Source region spec. is: 200.27223 29.92888 3"
NOTE: Used archived uvot source position of 200.27223  29.92888  3.00
NOTE: position reference is GCN_Circ_43005
NOTE: A UVOT position was reported in GCN_Circ_43005
NOTE: Possible detection in w1 at T+685.8
NOTE: Possible detection in wh at T+149.0
NOTE: Possible detection in vv at T+636.5
NOTE: Possible detection in bb at T+562.4
NOTE: Possible detection in uu at T+306.8

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

GRB 251205A: Swift/UVOT Upper Limits

***UBS*** (***INSTITUTION***) and Lanava (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 251205A
149 s after the BAT trigger (Lanava et al., GCN Circ. 43005).
No optical afterglow consistent with the XRT position
*** POSITION REFERENCE is GCN_Notice ***
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           149          299          147         >17.5
u_FC               307          557          246         >16.5
white              149          869          196         >17.3
v                  636          829           39         >16.6
b                  562          755           39         >17.0
u                  307          730          265         >16.5
w1                 686          706           19         >15.8

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.014 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 251205A: Swift/UVOT Detection

***UBS*** (***INSTITUTION***) and Lanava (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 251205A
149 s after the BAT trigger (Lanava et al., GCN Circ. 43005).
A source consistent with the XRT position
*** POSITION REFERENCE is GCN_Notice ***
is detected in the initial UVOT exposures.

The preliminary UVOT position is:
    RA  (J2000) =  13:21:05.34 = 200.27223 (deg.)
    Dec (J2000) = +29:55:44.0  =  29.92890 (deg.)
with an estimated uncertainty of 0.43 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              149          299          147         17.61 +/- 0.04
v                  636          829           39         16.98 +/- 0.16
b                  562          582           20         17.29 +/- 0.15
u                  307          557          246         16.58 +/- 0.04
w1                 686          706           20         16.19 +/- 0.16

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.014 in the direction of the burst
(Schlegel et al. 1998).