GCN Circular 30079
Subject
ZTF21aayokph (AT2021lfa): LBT optical observations
Event
Date
2021-05-26T08:07:05Z (5 years ago)
From
Andrea Rossi at INAF <andrea.rossi@inaf.it>
A. Rossi, E. Palazzi, F. Cusano (INAF-OAS) report on behalf of the
GRAWITA collaboration:
We observed the field of ZTF21aayokph/AT2021lfa (Yao et al., GCN 29938)
simultaneously in the r' and z' bands with the LBC imager mounted on LBT
(Mt Graham, AZ, USA). We obtained 20min of imaging on 2021-05-11 and
starting at 6:26 UT, 6 days after the first communication by ZTF.
Observations were performed under good weather conditions with an
average seeing of ~1.1".
We clearly detect the host galaxy at the position of the afterglow and
we preliminary measure the following AB magnitudes
r=23.9+-0.1
z=24.1+-0.2
calibrated against SDSS field stars.
We acknowledge the excellent support from the LBTO and LBT-INAF staff,
particularly A Cardwell, S. Allanson, and D. Paris, in obtaining these
observations.