{
  "bibcode": "2017GCN.21576....1T",
  "body": "N. R. Tanvir (U. Leicester), A. J. Levan, D. Steeghs (U. Warwick) report:\n\nWe note that the field of NGC 4993 was observed as part\nof the VISTA Hemisphere Survey on 9 April 2014.  No source\nis visible at the location of the candidate counterpart \n(Coulter et al. LVC GCN 21529).  We obtain a 3-sigma upper \nlimit of J(AB)=21.6, significantly fainter than the provisional magnitude\nof J(AB)=17.5+/-0.1 reported for the infrared transient \n(Tanvir et al. LVC GCN 21544).",
  "circularId": 21576,
  "createdOn": 1503090992000,
  "email": "nrt3@le.ac.uk",
  "subject": "LIGO/Virgo G298048: prior photometry from VISTA Hemisphere Survey",
  "submitter": "Nial Tanvir at U of Leicester  <nrt3@le.ac.uk>",
  "eventId": "LIGO/Virgo G298048"
}