{
  "bibcode": "2024GCN.37040....1P",
  "createdOn": 1722862188632,
  "body": " N. Pankov (HSE, IKI), V. Rumyantsev (CrAO), A. Pozanenko (IKI) report on\nbehalf of GRB-IKI-FuN:\n\nWe observed the field of EP240801a (Zhou et al, GCN 36997) with ZTSh 2.6 m\ntelescope of CrAO. The observation were carried out in moderate conditions\nwith seeing about 2.0 arcsec. We taken series of images in the R-filter. We\nclearly detect the optical counterpart (Fu et al, GCN 36998; Li et al, GCN\n36999; Zheng et al, GCN 37000; Aryan et al, GCN 37002; An et al, GCN 37004;\nPérez-Fournon et al, GCN 37007; Malesani et al, GCN 37008; Zhu et al, GCN\n37010; Moskvitin & Spiridonova, GCN 37012; Quirola-Vásquez et al, GCN\n37013; Moretti et al, GCN 37014; Turpin et al, GCN 37015; Pankov et al, GCN\n37016; Mo GCN 37017, ) in the stacked images. Preliminary\nphotometry is as follows:\n\nDate UT start t-T0 Exp. Filter OT Err. UL\n(mid, days) (s) (3sigma)\n2024-08-02 20:41:58 1.493699 15*120 R 22.27 0.05 23.7\n2024-08-03 19:43:38 2.456662 20*120 R 22.60 0.09 23.2\n\nThe magnitudes were calibrated using nearby stars from USNO-B1.0 catalog\n(R2 magnitudes) and not corrected for the Galactic extinction.\n",
  "submitter": "Alexei Pozanenko at IKI, Moscow <grb.alex@gmail.com>",
  "eventId": "EP240801a",
  "circularId": 37040,
  "subject": "EP240801a: Continued optical observations at ZTSh (CraO)",
  "submittedHow": "email-legacy"
}