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[vsnet-grb-info 1048] MASTER:optical observations GRB030418



TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  2158
SUBJECT: MASTER:optical observations GRB030418 
DATE:    03/04/21 00:11:07 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <gcncirc@observ.inetcomm.ru>

V. Lipunov, A. Krylov, V. Kornilov, G. Borisov, A. Belinski, I. Chilingarian,
D. Kuvshinov, M.V. Kuznetsov,  S. Potanin, V. Vitrischak

Sternberg Astronomical Institute, Alexsandr Krylov Observatory, Moscow
report:


The error box of GRB030418 (HETE 2679) was
observed with MASTER system (280mm, http://observ.pereplet.ru). We
obtained 20 measurements in R filter. Our observations started at Apr 18,
21:00 UT (11 hours after the GRB) and  had been lasting for 2.5 hours
up to Apr 18   22:36 UT (12,5 hours after  the  GRB).

There is no OT brighter than 16.5  (R-band) in error box. Transparency was
quite poor due to low altitude of the field above the horizont.

Our  fits-images are available at:
http://observ.pereplet.ru/images/GRB030418/30S9.zip


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