{
  "bibcode": "2010GCN.10569....1S",
  "body": "G. Stratta and V. D'Elia (ASDC) report on behalf of the Swift Team:\n\nSwift began a target of opportunity observation of\nGRB 100401A detected on ground (Cummings et al., GCN #10567)\nand by the Fermi/GBM (Goldstein and Gruber, GCN #10568), at\n19:33:04 UT on April 2nd, 2010, approximately 36.4 hours after the\nSwift/BAT trigger. In about 2 ks of Photon Counting\nmode data, no X-ray source is detected inside the BAT\nerror circle.\n\nThis circular is an official product of the Swift-XRT team.\n\n----------------------------------------------------------------\nThis message was sent using IMP, the Internet Messaging Program.",
  "circularId": 10569,
  "createdOn": 1270256102000,
  "email": "delia@asdc.asi.it",
  "subject": "Swift/BAT trigger 417974 (GRB100401A): Swift/XRT observations",
  "submitter": "Valerio D'Elia at ASDC  <delia@asdc.asi.it>",
  "eventId": "GRB 100401A"
}