TITLE: GCN CIRCULAR NUMBER: 15558 SUBJECT: GRB 131127B: Bassano Bresciano Observatory optical observations of iPTF13ecv DATE: 13/12/01 21:25:56 GMT FROM: Ulisse Quadri at Bassano Bresciano Obs U.Quadri, L.Strabla and R.Girelli report: We imaged again the field of iPTF13ecv optical afterglow candidate of GRB 131127B (Leo Singer: GCN 15524) 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.