{
  "subject": "LIGO/Virgo GW150914: BOOTES-3 simultaneous imaging",
  "eventId": "LIGO/Virgo GW150914",
  "bibcode": "2016GCN.19022....1C",
  "createdOn": 1455835891000,
  "circularId": 19022,
  "submitter": "Alberto J. Castro-Tirado at IAA-CSIC  <ajct@iaa.es>",
  "email": "ajct@iaa.es",
  "body": "A. J. Castro-Tirado (IAA-CSIC Granada & ISA-UMA M��laga), J. C. Tello, R. Cunniffe, S. R. Oates, B.-B. Zhang, S. Jeong (IAA-CSIC Granada), A. Castell��n (Univ. of M��laga), M. Jelinek (ASU-CAS Ondrejov), N. Rattenbury and Ph. Yock (Univ. of Auckland) and R. Querel (NIWA, Lauder) report:\n\nA search of the CASANDRA-3 allsky camera database at the BOOTES-3 astronomical station in Lauder (New Zealand), reveals a series of 36s images taken during the night of the LIGO/Virgo alert, covering the entire southern sky error-box.\n\nIn particular, amongst the hundreds of exposures, there is one starting at 09:50:22 UT that is contemporaneous to the LIGO/Virgo GW150914 event. Although a detailed investigation is ongoing, a limit of ~5th magnitude (due to poor weather conditions) is obtained for any optical transient\nwithin that error box.\n\n[GCN OPS NOTE(18feb16):  Per author's request, RC was added to the author list.]"
}