[AAVSO-HEN] GRB 070419A: NAYUTA Optical Observation

[grb at aavso.org]

The following is a GCN Circular circulated via the AAVSO network.
For an archive and more information on circulars visit:
http://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn3_archive.html

TITLE:   GCN CIRCULAR
NUMBER:  6316
SUBJECT: GRB 070419A: NAYUTA Optical Observation
DATE:    07/04/19 16:21:08 GMT
FROM:    Ryo Iizuka at NHAO  <iizuka at nhao.go.jp>

R. Iizuka, K. Matsuda, H. Naito and F. Tsumuraya
report on behalf of NHAO.

We observed the field of GRB 070419A (GCN 6302) with MINT
on the 2.0-m NAYUTA telescope at Nishi-Harima Astronomical
Observatory, Japan. We took images for a total of 100 sec in
R-band filter on 2007 Apr 19 10:55 UT (56 minutes after the burst).
The afterglow was detected with 20.1 mag relative to USNO-B stars.