{
  "subject": "EP250226a/GRB 250226A: GSP detects optical counterpart",
  "submittedHow": "web",
  "eventId": "EP250226a",
  "format": "text/plain",
  "submitter": "Wenxiong Li <liwenxiong1992@gmail.com>",
  "circularId": 39489,
  "bibcode": "2025GCN.39489....1L",
  "body": "W. X. Li, S. J. Xue (NAOC), M. Andrews, J. Farah, D. A. Howell, M. Newsome, E. Padilla Gonzalez, C. McCully, and G. Terreran (Las Cumbres Observatory), on behalf of a larger collaboration, report:\nFollowing the detection of the fast X-ray transient EP250226a/GRB 250226A by the Einstein Probe (Jiang et al., GCN 39482), we initiated observations of the fast X-ray transient location starting on Feb 26 at 9:23 UT (~3 hours after the EP/WXT trigger) in the i and z bands. These observations were conducted using the 1-meter telescope at the Las Cumbres Observatory node located at the Cerro Tololo Inter-American Observatory in Chile.\nThe optical counterpart (An et al., GCN 39486; Magnani et al., GCN 39488) was detected in the co-added images with i ~19.0 and z~19.3 mag.\nThese observations were taken as part of the Global Supernova Project.\n",
  "createdOn": 1740567461241
}