{
  "bibcode": "2018GCN.22368....1G",
  "body": "A. Grado (INAF-OAC), E. Cappellaro (INAF-OAPD), F. Getman (INAF-OAC), L.\nLimatola (INAF-OAC), S. Yang (INAF-OAPD), M. Branchesi (GSSI), S. Covino\n(INAF-OAB), P. D'Avanzo (INAF-OAB),  M. Della Valle (INAF-OAC), A. Melandri\n(INAF-OAB), L. Amati (INAF-OAS), S. Ascenzi (INAF-OAR), S. Benetti\n(INAF-OAPD), M.T. Botticella (INAF-OAC), G. Greco (Urbino University/INFN\nFirenze), L. Nicastro (INAF-OAS), E. Palazzi (INAF-OAS), E. Pian\n(INAF-OAS), S. Piranomonte (INAF-OAR), A. Rossi (INAF-OAS), G. Stratta\n(Urbino University/INFN Firenze), G. Tagliaferri (INAF-OAB), L . Tomasella\n(INAF-OAPD), E. Brocato (INAF-OAR) on behalf of GRavitational Wave Inaf\nTeAm.\n\nObservations pointed at the position of AT2017gfo of the skymap of the\nAdvanced LIGO and Virgo trigger G298048 (LVC GCN Circ. 21509, 21513) using\nthe VLT Survey Telescope (VST - Proposal ID ESO 0100.D-0022) at ESO-Paranal\nequipped with OMEGACAM (FOV=1 square degree). The images were acquired with\nthe g_SDSS, r_SDSS, filters for a total exposure of 5400s in each band. The\nobservations were executed in the nights 2018-01-05, 2018-01-18 and\n2018-01-19, starting at 2018-01-05T 06:57:00.057 UTC and finishing at\n2018-01-19T 06:55:22.862 UTC. The median FWHM and the 50% completeness\nmagnitudes are 0.91\", 0.92\" and 25.0  and 24.5 AB mags for the g_ssds and\nr_sdss bands respectively.\nNo source is visible at the GW optical counterpart coordinates\nRA=13:09:48.09 DEC=-23:22:53.35.\nWe acknowledge excellent support from the ESO User Support Department and\nfrom ESO observing staff in Paranal.",
  "circularId": 22368,
  "createdOn": 1516783617000,
  "email": "aniello.grado@gmail.com",
  "subject": "LIGO/Virgo G298048 GRAWITA: VST-ESO PARANAL follow up of AT2017gfo",
  "submitter": "Aniello Grado at INAF-OAC  <aniello.grado@gmail.com>",
  "eventId": "LIGO/Virgo G298048"
}