NOTE: uvot_fluxes_wget.pl vrs. 2023-03-23 fem at 240419d13h49m10s072089usUT
NOTE: Source region spec. is: 94.53404 -44.99925 3"
NOTE: Used archived opt source position of  94.53404 -44.99925  3.00
NOTE: position reference is GCN_Circulars-36175
NOTE: Possible detection in wh at T+551.6 sum
WARNING: Did not recognize UBS name.

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

GRB 240419A: Swift/UVOT Upper Limits

Shilling (***INSTITUTION***) and M. H. Siegel (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 240419A
113 s after the BAT trigger (Siegel et al., GCN Circ. 36169).
No optical afterglow consistent with the optical position
*** POSITION REFERENCE is GCN_Circulars-36175 ***
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           113          263          147         >20.5
u_FC               271          521          246         >20.7
white              113         1025          334         >21.1
v                  602         1075           58         >19.2
b                  527          721           39         >19.7
u                  271          869          285         >20.7
w1                 652          845           39         >18.8
m2                 627         1099           58         >20.0
w2                 578         1050           58         >19.4

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.070 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 240419A: Swift/UVOT Detection

Shilling (***INSTITUTION***) and M. H. Siegel (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 240419A
113 s after the BAT trigger (Siegel et al., GCN Circ. 36169).
A source consistent with the optical position
*** POSITION REFERENCE is GCN_Circulars-36175 ***
is detected in the initial UVOT exposures.

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              113          745          186         21.23 +/- 0.32
v                  602         1075           58        >19.2
b                  527          721           39        >19.7
u                  271          869          285        >20.7
w1                 652          845           39        >18.8
m2                 627         1099           58        >20.0
w2                 578         1050           58        >19.4

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.070 in the direction of the burst
(Schlegel et al. 1998).