TITLE:   GCN CIRCULAR
NUMBER:  15813
SUBJECT: GRB 140206A: Bassano Bresciano Observatory optical upper limit
DATE:    14/02/10 08:51:22 GMT
FROM:    Ulisse Quadri at Bassano Bresciano Obs  <oabb@ulisse.bs.it>

U.Quadri, L.Strabla and R.Girelli report:

We imaged the field of GRB 140206A detected by SWIFT(trigger 585834)
with the robotic telescope of (IAU station 565) Bassano Bresciano 
Observatory, Italy (member of ISSP:Italian Supernovae Search Project)

The observations started  85h 35m after the GRB trigger,  
with our schmidt telescope D=320/400 mm F/D=3.1.

Weather conditions were good.

We co-added 2 series of 15 exposures of 120 sec each.

We did not found any optical counterpart
in the error box of the XRTcandidate.
(Lien et. al GCN 15784 , Gotz et. al GCN 15784)

Start         End       Vlim
85h 35m     86h 47m     18.5

Magnitudes were estimated with the USNOB1.0 cat. 
and are not corrected for galactic dust extinction.

The images are available at:
http://www.osservatoriobassano.org/GRB.asp

The message may be cited.