NOTE: uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 210213d14h09m46s370728usUT
NOTE: Source region spec. is: 277.67338 -6.75422 4"
NOTE: Used archived XRT position of 277.67338  -6.75422  4.00
NOTE: position reference is GRB_Auto_Processing
NOTE: Possible detection in uu at T+276.0
NOTE: Possible detection in wh at T+64.0
NOTE: Possible detection in bb at T+531.3
NOTE: Possible detection in vv at T+605.2
NOTE: Possible detection in w2 at T+1034.1 sum

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

GRB 210213: Swift/UVOT Upper Limits

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

The Swift/UVOT began settled observations of the field of GRB 210213
64 s after the BAT trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the XRT position
*** POSITION REFERENCE is GRB_Auto_Processing ***
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            64          214          147         >16.8
u_FC               276          526          246         >17.2
white               64         1374          373         >16.9
v                  605         1772          136         >15.9
b                  531         1698          117         >16.9
u                  276         1673          363         >17.3
w1                 654         1648          117         >18.4
w2                 581         1575          117         >18.2

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 1.777 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 210213: Swift/UVOT Detection

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

The Swift/UVOT began settled observations of the field of GRB 210213
64 s after the BAT trigger (***Author*** et al., GCN Circ. ????).
A source consistent with the XRT position
*** POSITION REFERENCE is GRB_Auto_Processing ***
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               64          214          147         16.92 +/- 0.03
v                  605          625           20         15.94 +/- 0.14
b                  531          551           20         16.97 +/- 0.13
u                  276          526          246         17.43 +/- 0.07
w1                 654         1648          117        >18.4
w2                 581         1575          117         18.84 +/- 0.29

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 1.777 in the direction of the burst
(Schlegel et al. 1998).