TITLE: GCN CIRCULAR NUMBER: 18338 SUBJECT: LIGO/Virgo G184098: Observations from the TOROS collaboration DATE: 15/09/20 01:42:09 GMT FROM: Mario Diaz at U of Texas Carlos Colazo, Diego Garcia Lambas, Bruno Sanchez, Mariano Dominguez (Astronomical Observatory of Cordoba), and Martin Beroiz, Tania Pe����uela and Mario C. Diaz (U of Texas, Rio Grande Valley) on behalf of the TOROS team reports: The TOROS collaboration observed for a few hours Wednesday Sep 16 and Thursday Sep 17 at the Bosque Alegre Astrophysical Station (located in Cordoba province). Two instruments were used the 1.5 m reflector with a FOV 22��<80><99>X14��<80><99> with a limiting magnitude of ~20 and a 0.40 cm reflector with a 0.5x0.5 deg FOV. Due to the limited FOV instead of performing systematic surveys of regions within a given error a few objects were followed for some time. For Sept 16: These are for the 1.5 m: Object RAJ2000[h] DecJ2000[deg] AppMag IC1933 3.42774 -52.78547 12.5 NGC1529 4.12222 -62.89993 14.52 IC2038 4.14835 -55.99074 14.3 IC2039 4.15066 -56.01172 14.93 With the 0.40 cm (Toritos) the following was followed: PGC383392 3.98036 -57.98515 16.96 For Sep 17 Toritos Telescope 0.4m Number Object RAJ2000 DecJ2000 Lim Mag. FoV Filter 1 ESO057-080 6.38592 -68.7328 18.5 30��<80><99>x30��<80><99> Clear 2 ESO085-030 5.02499 -63.29273 18.5 30��<80><99>x30��<80><99> Clear 3 IC2049 4.20121 -58.5573 18.5 30��<80><99>x30��<80><99> Clear 4 IC2056 4.27348 -60.20683 18.5 30��<80><99>x30��<80><99> Clear 5 NGC1809 5.03488 -69.56724 18.5 30��<80><99>x30��<80><99> Clear 6 NGC1892 5.28585 -64.95983 18.5 30��<80><99>x30��<80><99> Clear 7 NGC2187 6.06456 -69.57743 18.5 30��<80><99>x30��<80><99> Clear EABA 1.54m Number Object RAJ2000 DecJ2000 FoV Filter 1 ESO058-018 6.83959 -71.03123 12��<80><99>x8��<80><99> Clear 2 ESO084-015 4.37003 -63.61097 12��<80><99>x8��<80><99> Clear 3 ESO119-005 4.80483 -60.29376 12��<80><99>x8��<80><99> Clear 4 NGC1559 4.29326 -62.78358 12��<80><99>x8��<80><99> Clear 5 PGC128075 4.32400 -60.53844 12��<80><99>x8��<80><99> Clear 6 PGC381152 4.23897 -58.20726 12��<80><99>x8��<80><99> Clear 7 PGC075108 4.24469 -58.13199 12��<80><99>x8��<80><99> Clear 8 PGC016318 4.91526 -61.56747 12��<80><99>x8��<80><99> Clear 9 PGC269445 6.68061 -71.33026 12��<80><99>x8��<80><99> Clear 10 PGC280995 6.4255 -69.15257 12��<80><99>x8��<80><99> Clear A crew from OAC has started preparation to start the follow-up campaign for O1 at the Macon site (Atacama region), but it was not ready for G184098. The analysis has not been completed yet. [GCN OPS NOTE(19sep15): This Circular was originally published on 03:29 18-Sep-2015 UT.] [GCN OPS NOTE(19sep15): The Sept 17 results were added to the original posting about ? day later.] `