{
  "format": "text/markdown",
  "bibcode": "2025GCN.41671....1H",
  "subject": "EP250827b / AT 2025wkm: TRT optical observations",
  "circularId": 41671,
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of L. B. He at NAOC <helb@bao.ac.cn>",
  "eventId": "EP250827b",
  "version": 2,
  "submitter": "L. B. He at NAOC <helb@bao.ac.cn>",
  "createdOn": 1756911998049,
  "body": "L.B. He (NAOC), K. Noysena, K. Chanchaiworawit, S. Tinyanont, R. Anutarawiramkul, P. Butpan (NARIT), S.Y. Fu (HUST), J. An, X. Liu, Z.P. Zhu, S.Q. Jiang, Z. Fan, W.X. Li, N.C. Sun, Y.N. Wang, D. Xu (NAOC) report on behalf of a large collaboration:\n\nWe followed up the optical transient AT 2025wkm, which is potentially associated with EP250827b (Schroeder et al., GCN 41635). Our first epoch was carried out at the 0.7-m telescope of the Thai Robotic Telescope network (TRT), located at Fresno, California, U.S.A (SRO), approximately 5.04 days after the EP X-ray flare. And we obtained several frames in the R band.\n\nThe counterpart (Schroder et al., GCN 41635; Hall et al., GCN 41636; Hall et al., GCN 41641; Eyles-Ferris et al., GCN 41655; Ma et al., GCN 41667; Eyles-Ferris et al., GCN 41669) was clearly detected in the stacked image, with R = 19.62 +/- 0.04 (Vega), calibrated with Pan-STARRS DR2 catalog and not corrected for Galactic extinction.",
  "submittedHow": "web",
  "editedOn": 1756913724610
}