[vsnet-grb-info 507] GRB 021016, optical observations

[GCN Circulars <gcncirc@lheawww.gsfc.nasa.gov>]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1646
SUBJECT: GRB 021016, optical observations
DATE:    02/10/21 14:23:45 GMT
FROM:    Sylvio Klose at TLS Tautenburg  <klose@tls-tautenburg.de>

S. Klose and U. Laux (Thueringer Landessternwarte Tautenburg)

report:


The error box of GRB 021016 (Hurley et al., GCN 1639) was imaged in
R and I on October 18/19 and 20/21 (2.3 and 4.3 days after the burst
trigger, respectively), using the Tautenburg Schmidt telescope
equipped with the Schmidt focus CCD camera (2k x 2k; FOV 42 x 42
arcmin). Several frames were taken (2 min exposure time each). The
limiting magnitude of the combined frames of each observing run is
about R=20.5 +/- 0.5 and I=20.5 +/- 0.5.

We do not find any potential GRB afterglow, neither in the R-band
nor in the I-band.

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