NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 190325d06h10m01s005795usUT
NOTE: Source region spec. is: 49.6155 -47.2146 3"
NOTE: Used archived uvot source position of  49.61550 -47.21460  3.00
NOTE: position reference is GCN_Notice
NOTE: A UVOT position was reported in GCN_Notice_Mon_25_Mar_19_04:17:28_UT
NOTE: Possible detection in uu at T+4075.0
NOTE: Possible detection in wh at T+3302.3
NOTE: Possible detection in bb at T+4281.4
NOTE: Possible detection in w1 at T+3870.2
NOTE: Possible detection in vv at T+3459.2
NOTE: Possible detection in w2 at T+4691.9
NOTE: Possible detection in m2 at T+3663.8

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

GRB 190324A: Swift/UVOT Upper Limits

M. H. Siegel (PSU) and S. J. LaPorte (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 190324A
3302 s after the BAT trigger (LaPorte et al., GCN Circ. 23993).
No optical afterglow consistent with the XRT position
(Beardmore et al. GCN Circ. 24001)
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          3302         3452          147         >17.1
white             3302         4686          344         >17.3
v                 3459         5096          393         >17.4
b                 4281        11267          526         >18.3
u                 4075        10922         1082         >17.5
w1                3870        10009         1108         >17.3
m2                3664         5301          393         >16.7
w2                4692         4892          197         >17.5

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.02 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 190324A: Swift/UVOT Detection

M. H. Siegel (PSU) and S. J. LaPorte (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 190324A
3302 s after the BAT trigger (LaPorte et al., GCN Circ. 23993).
A source consistent with the XRT position
(Beardmore et al. GCN Circ. 24001)
is detected in the initial UVOT exposures.

The preliminary UVOT position is:
    RA  (J2000) =  03:18:27.74 =  49.61559 (deg.)
    Dec (J2000) = -47:12:52.6  = -47.21462 (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             3302         3452          147         17.23 +/- 0.04
v                 3459         3659          197         17.55 +/- 0.11
b                 4281         4481          197         17.98 +/- 0.07
u                 4075         4275          197         16.75 +/- 0.05
w1                3870         4070          197         16.76 +/- 0.07
m2                3664         3864          197         16.79 +/- 0.09
w2                4692         4892          197         17.82 +/- 0.12

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.02 in the direction of the burst
(Schlegel et al. 1998).