Hello,
Following alert Astro-COLIBRI I images the OP313 quazar.
I have no idea how to report my measurement (or even if this is usefull) for the counterpart in red of the GeV flare :
ATel #16940: Fermi-LAT detection of renewed gamma-ray activity from the FSRQ OP 313
Location is fitting to a know flat-spectrum radio quasar : (FSRQ) OP 313 (B2 1308+32)
Image in R from last night :
Mag (R) 13.555 +/- 0.061
Mag (B) 14.519 +/- 0.020
(using ATLAS in R and B for comp stars)
DSS image : Mag 17.656 +/- 0.443
