{
  "eventId": "EP260306a",
  "version": 2,
  "circularId": 43929,
  "editedOn": 1773063607637,
  "bibcode": "2026GCN.43929....1L",
  "createdOn": 1772764274842,
  "body": "Wenxiong Li, Runduo Liang (NAOC), Iair Arcavi, Ido Keinan (TAU), David Sand (U of Arizona)\nWe observed the position of the EP/WXT trigger 01709258759 with a Las Cumbres 1m telescope at McDonald Observatory, Texas, 20 mins after the Einstein Probe WXT trigger. We took 2x300s exposures in the broad optical w band.\nWe find an uncataloged source at RA=145.9490, Dec=15.6937 within the EP/WXT error circle and measure the following preliminary photometry calibrated to the r band: MJD 61105.08 Mag 21.6",
  "format": "text/plain",
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Malte Busmann at Ludwig-Maximilians-Universität München <m.busmann@physik.lmu.de>",
  "subject": "The EP-WXT trigger 01709258759: Las Cumbres discovery of the optical counterpart",
  "submitter": "Wenxiong Li at NAOC <liwenxiong1992@gmail.com>",
  "submittedHow": "web"
}