{
  "body": "Peter K. Blanchard and Edo Berger (Harvard) report on behalf of a larger collaboration:\n\nWe observed the short GRB 241209A (GCNs 38474, 38476) with Chandra/ACIS (Program 25500091, PI: Berger) starting at UT 2024-12-10 13:47:26 with an exposure time of 19.8 ks (mid-time of 38.4 hr post-burst).  We detect a source consistent with the enhanced Swift/XRT position (GCN 38486) at the following coordinates:\n\nRA (J2000): 10:21:35.207\nDec (J2000): +06:19:42.73\n\nwith a one sigma uncertainty of 0.3” in RA and Dec.\n\nThe X-ray source is closer (~0.6” away) to the fainter galaxy of the two identified by de Ugarte Postigo et al. (GCN 38484), which has a redshift of z=1.490 (GCN 38487).  The source is ~2” away from the infrared source identified by Schneider et al. (GCN 38506).\n\nWe thank the Chandra team for rapidly scheduling these observations.\n",
  "eventId": "GRB 241209A",
  "submittedHow": "web",
  "circularId": 38538,
  "bibcode": "2024GCN.38538....1B",
  "submitter": "Peter Blanchard at Harvard <peter.blanchard@cfa.harvard.edu>",
  "format": "text/plain",
  "subject": "GRB 241209A: Chandra X-ray Detection",
  "createdOn": 1733945251278
}