{
  "eventId": "GRB 260903A",
  "submittedHow": "web",
  "createdOn": 1788502265340,
  "format": "text/plain",
  "submitter": "EP Team at NAOC/CAS <ep_ta@bao.ac.cn>",
  "eventType": [
    "GRB",
    "X-ray Transient"
  ],
  "body": "R.-Z. Li (YNAO, CAS), Z.-M. Wang (BNU), R. Shi (PMO), H. Sun (NAO,CAS) on behalf of the Einstein Probe (EP) team: \n\nEP-FXT performed a follow-up observation of GRB 260903A, detected by SVOM/ECLAIRs (sb26090302; Brunet et al., GCN 45499), at 2026-09-03 14:46:48 (UTC), about 2.16 hours after the SVOM/ECLAIRs trigger, with an exposure time of 6005 s.\n\nOn-ground analysis of the EP-FXT data found an uncataloged fading X-ray source within the SVOM/VT error region (Li et al., GCN 45504). The preliminary results for the X-ray source are as follows:\n\nSource name: EPF_J014238.7+112211\nR.A., Decl. (J2000) = 25.6614, 11.3696 deg\nLocalization error radius = 10 arcsec\n0.5-10 keV flux = 9.76e-13 erg/cm^ 2/s\nFlux error = 1.94e-13 erg/cm^2/s (1 sigma)\n\nLaunched on January 9, 2024, EP is a space X-ray observatory to monitor the soft X-ray sky with X-ray follow-up capability (Yuan et al. 2022, Handbook of X-ray and Gamma-ray Astrophysics).\n",
  "circularId": 45510,
  "subject": "GRB 260903A: EP-FXT follow-up observation"
}