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GCN Circular 19321

Subject

GRB 160417A: iTelescope T11 optical observations

Date

2016-04-17T17:10:58Z (8 years ago)

From

Veli-Pekka Hentunen at Taurus Hill Obs,A95 <veli-pekka.hentunen@kassiopeia.net>

Veli-Pekka Hentunen, Markku Nissinen and Tuomo Salmi (Taurus Hill
Observatory, Varkaus, Finland) report:

We have detected GRB 160417A optical afterglow at iTelescope observatory
T11 (Mayhill, New Mexico) using 0.50-m f/6.8 astrograph and FLI
PL11002M CCD. The observations were started at 2016-04-17
05:08:31 (UT). Two unfiltered images with 300 sec exposure time were taken.

The afterglow was detected at the position RA 08:01:01.65 and DEC
+07:39:47.6.

The following magnitude was obtained from the observations using
USNO-B1.0 0976-0191477 (R2=16.67) as a comparison star:

Tmid(s)+T0       Filter         Exp. time         Mag              Mag. Err.
2996                 Clear         2x300s           18.6CR          0.3

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