NOTE: uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 241030d23h02m29s205293usUT
NOTE: Source region spec. is: 343.13946 80.44995 3"
NOTE: Used archived uvot source position of 343.13946  80.44995  3.00
NOTE: position reference is GCN_Circ_37974
NOTE: A UVOT position was reported in GCN_Circ_37974
NOTE: Possible detection in uu at T+295.4
NOTE: Possible detection in m2 at T+4912.0
NOTE: Possible detection in w1 at T+674.5
NOTE: Possible detection in w2 at T+600.8
NOTE: Possible detection in bb at T+550.8
NOTE: Possible detection in wh at T+82.6
NOTE: Possible detection in vv at T+625.3

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

GRB 241030A: 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 241030A
83 s after the BAT trigger (Klingler et al., GCN Circ. 37956).
No optical afterglow consistent with the XRT position
*** POSITION REFERENCE is GCN_Circulars-37962 ***
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            83          232          147         >15.4
u_FC               295          545          246         >12.9
white               83          935          246         >14.9
v                  625         4907          236         >15.4
b                  551          744           39         >14.1
u                  295         5375          316         >13.3
w1                 674         5318          236         >15.7
m2                4912         5112          197         >16.9
w2                 601         4702          236         >16.9

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.131 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 241030A: 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 241030A
83 s after the BAT trigger (Klingler et al., GCN Circ. 37956).
A source consistent with the XRT position
*** POSITION REFERENCE is GCN_Circulars-37962 ***
is detected in the initial UVOT exposures.

The preliminary UVOT position is:
    RA  (J2000) =  22:52:33.48 = 343.13948 (deg.)
    Dec (J2000) = +80:26:59.8  =  80.44995 (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               83          232          147         15.44 +/- 0.02
v                  625          645           19         13.70 +/- 0.05
b                  551          571           20         13.97 +/- 0.04
u                  295          545          246         12.97 +/- 0.02
w1                 674          694           20         14.10 +/- 0.06
m2                4912         5112          197         17.17 +/- 0.10
w2                 601          621           20         15.33 +/- 0.11

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.131 in the direction of the burst
(Schlegel et al. 1998).