{
  "bibcode": "2018GCN.22603....1G",
  "body": "C. Guidorzi, R. Martone (U. Ferrara), S. Kobayashi (LJMU), C.G. Mundell \n(U. Bath), A. Gomboc (U. Nova Gorica), I.A. Steele (LJMU) on behalf of a \nlarge collaboration report:\n\nWe began observing Swift GRB180404A (Gropp et al. GCN 22589) on April 4, \n09:30 UT (0.36 days post burst) with the LCO 2-m Faulkes Telescope South \nunit in Siding Springs in the SDSS-R filter. We marginally detect the \noptical afterglow (Gropp et al.; Selsing et al. GCN 22591) with the \nfollowing magnitude:\n\nMid time since GRB���� Exp������� Filter�������� Magnitude\n(days)���������������� (s)\n-------------------------------------------------------------\n0.37������������������ 5x120����� SDSS-R�������� 21.3 +- 0.3\n-------------------------------------------------------------\n\nas calibrated against nearby USNO UCAC4 objects.",
  "circularId": 22603,
  "createdOn": 1522920964000,
  "email": "guidorzi@fe.infn.it",
  "subject": "GRB 180404A: LCO FTS observations",
  "submitter": "Cristiano Guidorzi at Ferrara U,Italy  <guidorzi@fe.infn.it>",
  "eventId": "GRB 180404A"
}