GCN Circular 37017
Subject
EP240801a: further SAO RAS optical observations
Event
Date
2024-08-02T23:12:07Z (a year ago)
From
Moskvitin Alexander at SAO RAS <mosk@sao.ru>
Via
legacy email
A. S. Moskvitin and O. I. Spiridonova (SAO RAS)
report on behalf of the GRB follow-up team.
We observed the field of the fast X-ray transient EP240801a
(Zhou et al., GCN 36997) with the SAO RAS 1-meter telescope Zeiss-1000
equipped with the CCD-photometer. We obtained 9 x 300 sec frames
in Rc band on 2024-08-02T20:14:00 -- 2024-08-02T22:09:01 (UTC),
t_mid - T0 = 1.5038 days.
The OT (Fu et al., GCN 36998; Li et al., GCN 36999; Zheng et al.,
GCN 37000; Aryan et al., GCN 37002; An et al., GCN 37004;
Perez-Fournon et al., GCN 37007; Malesani et al., GCN 37008;
Zhu et al., GCN 37010; Quirola-Vasquez et al., GCN 37013;
Moretti et al., GCN 37014; Turpin et al., GCN 37015; Pankov et al.,
GCN 37016) is clearly detected in the stacked frame
with the brightness of R = 22.17 +/- 0.15, calibrated against nearby
Pan-STARRS stars and not corrected for Galactic extinction.