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GCN Circular 31822

Subject
GRB 220403A: Tautenburg observations
Date
2022-04-03T22:57:37Z (2 years ago)
From
Ana Nicuesa at TLS Tautenburg <ana@tls-tautenburg.de>
A. Nicuesa Guelbenzu, B. Stecklum, S. Klose, S. Melnikov, and
U. Ludwig (all Tautenburg) report:

Tautenburg started observing the field of GRB 220403A (Klingler et
al. GCN 31820) at 2022-04-03, 21:35:37 UT, using the 1.34m Schmidt
telescope equipped with the TAUKAM 6k x 6k CCD camera. Observations
are still ongoing.

At a mean time 21:36:07 UT for the optical transient discovered by
Swift/UVOT, we measure the following magnitude:

r = 19.28 +/- 0.04 mag (AB),

calibrated against the Pan-STARRS catalog. Compared to the observations
reported by Jelinek et al. (GCN 31821), the source is fading.
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