[vsnet-grb-info 4344] GRB070223: MASTER-VWF-Kislovodsk observations

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  6131
SUBJECT: GRB070223: MASTER-VWF-Kislovodsk observations 
DATE:    07/02/23 12:42:11 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc at observ.inetcomm.ru>

V. Lipunov, V.Kornilov, N.Shatskiy, E.Gorbovskoy, A.Belinski, D.Kuvshinov, 
N.Tyurina, P.Gritsyk
Sternberg Astronomical Institute, Moscow Union 'Optic'

A. Tlatov, I.Golubov
Kislovodsk Solar Station of the Pulkovo observatory

MASTER Very Wide Field Camera located at Kislovodsk Solar Station
(http://observ.pereplet.ru, D=70 mm, 420 square degrees, 11 Mpixel's CCD) 
has moved to the Swift-BAT trigger 261664 and it has taken a series of 5s 
exposures  starting 1 s after notice arrivel time at  01:23:11.719 UT 
under good weather  condition and yang moon.

We note that the GBR position (L. Vetere et al. GCN Circ No. 6125) was 
at 5 degrees outside of the our field of view.

We note that the VWF camera continuously takes frames during the night.


These unfiltered images are calibrated relative to USNO A2.0 (R).
There is no OT was found inside Swift error box.

T-Tgrb     Mean Time     Limit   Coadd?           Note

491s        493.5s       11.0     no       slightly moving

496s        498.5s       11.5     no

496s         521 s       12.5     10

496s         586 s       13.0     36



The message can be cited.

mailto: lipunov at sai.msu.ru