[vsnet-grb-info 21508] GRB 190103B: Bassano Bresciano observatory upper limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  23607
SUBJECT: GRB 190103B: Bassano Bresciano observatory upper limit 
DATE:    19/01/04 17:41:11 GMT
FROM:    Ulisse Quadri at Bassano Bresciano Obs  <oabb at ulisse.bs.it>

U.Quadri, L.Strabla and A.Quadri report:

We imaged the field of GRB 190103B detected by SWIFT(trigger 881709)
with the robotic telescope of (IAU station 565) Bassano Bresciano 
Observatory, Italy. Member of: 
AAVSO - American Association of Variable Star Observers.
ISSP - Italian Supernovae Search Project.
UAI/SSV - Unione Astrofili Italiani/sezione stelle variabili.

The observations started 194.16 min after the GRB trigger,  
with our Schmidt telescope D=320/400 mm F/D=3.1.

Weather conditions were good.

We co-added 64 exposures of 240 sec each.

Start T0+      End T0+       Vlim
194.16 min   459.27 min    19.5

We did not found any optical counterpart in the error box of the XRTcandidate.
A. Y. Lien (GSFC/UMBC), S. D. Barthelmy (GSFC), J. A. Kennea (PSU), et al.

Magnitudes were estimated with the UCAC4 cat. and 
are not corrected for galactic dust extinction.

Reference:
http://www.osservatoriobassano.org/GRB.asp

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