{
  "submitter": "Wenxiong Li at NAOC <liwenxiong1992@gmail.com>",
  "format": "text/plain",
  "subject": "EP260623a: Las Cumbres discovery of the optical counterpart",
  "editedOn": 1782197390463,
  "editedBy": "Judith Racusin at NASA/GSFC <judith.racusin@nasa.gov> on behalf of Wenxiong Li at NAOC <liwenxiong1992@gmail.com>",
  "createdOn": 1782188204306,
  "body": "Wenxiong Li, Runduo Liang (NAOC), Iair Arcavi, Ido Keinan (TAU), David Sand (U of Arizona)\n\nWe observed the position of EP260623a (Wang et al. GCN 45020) with a Las Cumbres 1m telescope at Teide Observatory, Tenerife, 8 mins after the Einstein Probe WXT trigger. We took 2x300s exposures in the broad optical w-band.\nWe find an uncataloged source at RA=328.2698, Dec=12.7939 within the EP-FXT error circle and measure the following preliminary photometry calibrated to the r band: \nMJD 61214.12687 Mag 16.54 +- 0.01\nMJD 61214.13064 Mag 15.62 +- 0.01\nThis target brightened by ~0.9 mag within 6 minutes.\n\n\nThe presented magnitudes are calibrated with Pan-STARRS sources in the field and not corrected for Galactic extinction. Additional follow-up is encouraged.\n",
  "circularId": 45021,
  "submittedHow": "web",
  "eventId": "EP260623a",
  "version": 2
}