TITLE:   GCN CIRCULAR
NUMBER:  18336
SUBJECT: LIGO/Virgo G184098: VST-ESO PARANAL observations
DATE:    15/09/20 01:34:12 GMT
FROM:    Silvia Piranomonte at INAF  <silvia.piranomonte@oa-roma.inaf.it>

E. Brocato (INAF-OAR), M. Branchesi (Urbino University/INFN Firenze), S. Campana (INAF-OAB), E. Cappellaro (INAF-OAPd), S. Covino (INAF-OAB), P.
Dâ<80><99>Avanzo (INAF-OAB), L.Grado (INAF-OAC), G.Greco (Urbino University/INFN Firenze), L. Nicastro (INAF-IASF-Bo), E. Palazzi (INAF-IASF-Bo), E. Pian
(SNS-Pisa), S. Piranomonte (INAF-OAR), G. Stratta (Urbino University/INFN Firenze) on behalf of the INAF Gravitational Astronomy group.

We observed part of the skymap of the avanced LIGO and Virgo trigger G184098, with the VLT Survey Telescope (VST) at ESO-Paranal equipped with OMEGACAM
(FOV=1 square degree). The observations were taken in the r-sloan band and started at 2015-09-17T06:26:25.645 UT.
The coverd area  was ~ 54 square degrees divided in 6 pointings of 9 square degrees and 80 sec exptime each.
The 3 x 3 deg pointings are centered on the following coordinates RA, Dec (J2000):
05:22:57 -67:30:00; 05:58:00 -70:43:48; 06:34:45 -70:43:48; 07:47:40 -70:38:24; 08:05:57 -67:31:12; 08:38:40 -67:31:12

The image anaysis is ongoing. Further observations of these fields plus four new fields near these pointings are planned for this night.

[GCN OPS NOTE(19sep15): This Circular was originally published on 22:04 17-Sep-2015 UT.]