GCN Circular 15558

Subject

GRB 131127B: Bassano Bresciano Observatory optical observations of iPTF13ecv

Event

Date

2013-12-01T21:25:56Z (12 years ago)

From

Ulisse Quadri at Bassano Bresciano Obs <oabb@ulisse.bs.it>

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

We imaged again the field of iPTF13ecv optical afterglow
candidate of GRB 131127B (Leo Singer: GCN 15524Loading...
 
 ) with
the robotic telescope of (IAU station 565) Bassano
Bresciano Observatory, Italy (member of ISSP:Italian
Supernovae Search Project).

We have observed that the brightness of this object
is not decreased during 5 days after the discovery.

Follow the results of our photometry +/- 0.2 mag:

    Date UT          Exp    R-mag
    Middle           (s)   (rough)

2013 11 28.76209     600    18.77
2013 11 28.76914     600    18.69
2013 11 28.76926     600    18.58
2013 11 28.77644     600    18.89
2013 11 29.75051     600    18.47
2013 12 01.72377     600    18.85
2013 12 01.73159     600    18.85
2013 12 01.74629     600    18.93


Magnitudes were estimated with the USNO-B1 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.