GCN Circular 18348
Subject
LIGO/Virgo G184098: TAROT network optical observations
Date
2015-09-20T02:48:44Z (9 years ago)
From
Michel Boer at CESR-CNRS <michel.boer@unice.fr>
A. Klotz (IRAP, CNRS/UPS) and M. Boer (ARTEMIS, CNRS/OCA/UNS) report,
on behalf of the TZAC (TAROT - Zadko - Aures - C2PU) collaboration:
ve continued to image the error box of the candidate event
GW 150914 == ALIGO trigger 184098 with the TAROT robotic telescopes
located at the La Silla (ESO) and at Calern (OCA) observatories.
The TAROTs telescopes have a field of view of 1.9�� x 1.9��, and a typical limiting
magnitude with the C (clear) position equivalent to R < 18 for 120s exposure time.
148 images were acquired within the 20% probability contour.
5 fields were examined in the Southern part of the error box.
3 fields were examined in the Northern part of the error box.
The full log of the observations is given below. No obvious candidate has been found.
Detailled analysis of the images is in progress and will be reported later.
Date-Obs exp f ra dec (Field of view)
2015-09-17T04:59:59 120 C 90.151 -69.613 (1.9 deg x 1.9 deg)
2015-09-17T05:02:09 120 C 90.149 -69.614 (1.9 deg x 1.9 deg)
2015-09-17T05:04:20 120 B 90.162 -69.616 (1.9 deg x 1.9 deg)
2015-09-17T05:10:00 120 C 103.487 -70.333 (1.9 deg x 1.9 deg)
2015-09-17T05:19:59 120 C 109.489 -69.719 (1.9 deg x 1.9 deg)
2015-09-17T05:22:09 120 C 109.487 -69.720 (1.9 deg x 1.9 deg)
2015-09-17T05:24:19 120 B 109.500 -69.722 (1.9 deg x 1.9 deg)
2015-09-17T05:34:24 120 B 90.145 -69.618 (1.9 deg x 1.9 deg)
2015-09-17T05:42:10 120 C 103.462 -70.318 (1.9 deg x 1.9 deg)
2015-09-17T05:44:20 120 B 103.473 -70.320 (1.9 deg x 1.9 deg)
2015-09-17T05:50:00 120 C 109.478 -69.718 (1.9 deg x 1.9 deg)
2015-09-17T05:52:10 120 C 109.477 -69.719 (1.9 deg x 1.9 deg)
2015-09-17T05:54:20 120 B 109.489 -69.721 (1.9 deg x 1.9 deg)
2015-09-17T06:00:00 120 C 103.443 -70.331 (1.9 deg x 1.9 deg)
2015-09-17T06:02:11 120 C 103.440 -70.331 (1.9 deg x 1.9 deg)
2015-09-17T06:09:59 120 C 109.461 -69.732 (1.9 deg x 1.9 deg)
2015-09-17T06:12:10 120 C 109.458 -69.733 (1.9 deg x 1.9 deg)
2015-09-17T06:14:20 120 B 109.469 -69.735 (1.9 deg x 1.9 deg)
2015-09-17T06:20:00 120 C 114.974 -69.632 (1.9 deg x 1.9 deg)
2015-09-17T06:22:11 120 C 114.971 -69.632 (1.9 deg x 1.9 deg)
2015-09-17T06:24:21 120 B 114.982 -69.635 (1.9 deg x 1.9 deg)
2015-09-17T06:29:59 120 C 103.427 -70.328 (1.9 deg x 1.9 deg)
2015-09-17T06:32:09 120 C 103.424 -70.329 (1.9 deg x 1.9 deg)
2015-09-17T06:34:20 120 B 103.437 -70.330 (1.9 deg x 1.9 deg)
2015-09-17T06:40:00 120 C 109.434 -69.730 (1.9 deg x 1.9 deg)
2015-09-17T06:42:10 120 C 109.431 -69.730 (1.9 deg x 1.9 deg)
2015-09-17T06:44:20 120 B 109.443 -69.732 (1.9 deg x 1.9 deg)
2015-09-17T06:49:59 120 C 114.941 -69.629 (1.9 deg x 1.9 deg)
2015-09-17T06:52:09 120 C 114.939 -69.630 (1.9 deg x 1.9 deg)
2015-09-17T06:54:20 120 B 114.950 -69.632 (1.9 deg x 1.9 deg)
2015-09-17T07:09:59 120 C 109.422 -69.726 (1.9 deg x 1.9 deg)
2015-09-17T07:12:09 120 C 109.419 -69.727 (1.9 deg x 1.9 deg)
2015-09-17T07:14:19 120 B 109.431 -69.729 (1.9 deg x 1.9 deg)
2015-09-17T07:20:00 120 C 114.931 -69.617 (1.9 deg x 1.9 deg)
2015-09-17T07:22:10 120 C 114.930 -69.617 (1.9 deg x 1.9 deg)
2015-09-17T07:24:20 120 B 114.942 -69.619 (1.9 deg x 1.9 deg)
2015-09-17T07:30:00 120 C 103.394 -70.308 (1.9 deg x 1.9 deg)
2015-09-17T07:32:10 120 C 103.392 -70.308 (1.9 deg x 1.9 deg)
2015-09-17T07:34:21 120 B 103.405 -70.310 (1.9 deg x 1.9 deg)
2015-09-17T07:50:00 120 C 114.908 -69.612 (1.9 deg x 1.9 deg)
2015-09-17T07:52:10 120 C 114.906 -69.612 (1.9 deg x 1.9 deg)
2015-09-17T07:54:20 120 B 114.919 -69.614 (1.9 deg x 1.9 deg)
2015-09-17T07:59:59 120 C 109.397 -69.717 (1.9 deg x 1.9 deg)
2015-09-17T08:02:09 120 C 109.394 -69.717 (1.9 deg x 1.9 deg)
2015-09-17T08:04:20 120 B 109.407 -69.718 (1.9 deg x 1.9 deg)
2015-09-17T08:10:00 120 C 114.901 -69.609 (1.9 deg x 1.9 deg)
2015-09-17T08:12:11 120 C 114.900 -69.609 (1.9 deg x 1.9 deg)
2015-09-17T08:14:21 120 B 114.912 -69.611 (1.9 deg x 1.9 deg)
2015-09-17T08:19:59 120 C 124.921 -68.013 (1.9 deg x 1.9 deg)
2015-09-17T08:22:09 120 C 124.920 -68.013 (1.9 deg x 1.9 deg)
2015-09-17T08:24:19 120 B 124.931 -68.015 (1.9 deg x 1.9 deg)
2015-09-17T08:30:00 120 C 109.383 -69.713 (1.9 deg x 1.9 deg)
2015-09-17T08:32:11 120 C 109.382 -69.713 (1.9 deg x 1.9 deg)
2015-09-17T08:34:21 120 B 109.394 -69.715 (1.9 deg x 1.9 deg)
2015-09-18T03:30:00 120 C 129.841 +5.217 (1.9 deg x 1.9 deg)
2015-09-18T03:32:10 120 C 129.842 +5.217 (1.9 deg x 1.9 deg)
2015-09-18T03:34:21 120 C 129.842 +5.217 (1.9 deg x 1.9 deg)
2015-09-18T03:40:01 120 C 134.241 +3.220 (1.9 deg x 1.9 deg)
2015-09-18T03:42:11 120 C 134.241 +3.220 (1.9 deg x 1.9 deg)
2015-09-18T03:44:22 120 C 134.241 +3.220 (1.9 deg x 1.9 deg)
2015-09-18T03:50:01 120 C 134.444 +6.220 (1.9 deg x 1.9 deg)
2015-09-18T03:52:12 120 C 134.444 +6.221 (1.9 deg x 1.9 deg)
2015-09-18T03:54:23 120 C 134.445 +6.221 (1.9 deg x 1.9 deg)
2015-09-18T04:00:01 120 C 129.844 +5.215 (1.9 deg x 1.9 deg)
2015-09-18T04:02:11 120 C 129.847 +5.215 (1.9 deg x 1.9 deg)
2015-09-18T04:04:23 120 C 129.847 +5.215 (1.9 deg x 1.9 deg)
2015-09-18T04:10:00 120 C 134.242 +3.216 (1.9 deg x 1.9 deg)
2015-09-18T04:12:12 120 C 134.245 +3.217 (1.9 deg x 1.9 deg)
2015-09-18T04:14:22 120 C 134.245 +3.217 (1.9 deg x 1.9 deg)
2015-09-18T05:39:59 120 C 103.462 -70.317 (1.9 deg x 1.9 deg)
2015-09-18T05:42:11 120 C 103.458 -70.318 (1.9 deg x 1.9 deg)
2015-09-18T05:44:24 120 C 103.456 -70.318 (1.9 deg x 1.9 deg)
2015-09-18T05:50:00 120 C 109.477 -69.716 (1.9 deg x 1.9 deg)
2015-09-18T05:52:12 120 C 109.476 -69.716 (1.9 deg x 1.9 deg)
2015-09-18T05:54:25 120 C 109.473 -69.717 (1.9 deg x 1.9 deg)
2015-09-18T06:02:12 120 C 103.439 -70.327 (1.9 deg x 1.9 deg)
2015-09-18T06:04:24 120 C 103.437 -70.327 (1.9 deg x 1.9 deg)
2015-09-18T06:09:59 120 C 109.457 -69.714 (1.9 deg x 1.9 deg)
2015-09-18T06:12:12 120 C 109.455 -69.715 (1.9 deg x 1.9 deg)
2015-09-18T06:14:23 120 C 109.453 -69.715 (1.9 deg x 1.9 deg)
2015-09-18T06:29:59 120 C 103.429 -70.321 (1.9 deg x 1.9 deg)
2015-09-18T06:32:11 120 C 103.426 -70.322 (1.9 deg x 1.9 deg)
2015-09-18T06:34:22 120 C 103.424 -70.322 (1.9 deg x 1.9 deg)
2015-09-18T06:40:00 120 C 109.435 -69.725 (1.9 deg x 1.9 deg)
2015-09-18T06:42:12 120 C 109.432 -69.725 (1.9 deg x 1.9 deg)
2015-09-18T06:44:24 120 C 109.430 -69.726 (1.9 deg x 1.9 deg)
2015-09-18T06:49:59 120 C 114.942 -69.627 (1.9 deg x 1.9 deg)
2015-09-18T06:52:11 120 C 114.939 -69.627 (1.9 deg x 1.9 deg)
2015-09-18T06:54:23 120 C 114.937 -69.628 (1.9 deg x 1.9 deg)
2015-09-18T07:00:00 120 C 103.407 -70.318 (1.9 deg x 1.9 deg)
2015-09-18T07:02:12 120 C 103.405 -70.319 (1.9 deg x 1.9 deg)
2015-09-18T07:04:24 120 C 103.404 -70.319 (1.9 deg x 1.9 deg)
2015-09-18T07:09:59 120 C 109.422 -69.722 (1.9 deg x 1.9 deg)
2015-09-18T07:12:11 120 C 109.419 -69.722 (1.9 deg x 1.9 deg)
2015-09-18T07:14:23 120 C 109.417 -69.723 (1.9 deg x 1.9 deg)
2015-09-18T07:20:00 120 C 114.929 -69.611 (1.9 deg x 1.9 deg)
2015-09-18T07:22:12 120 C 114.928 -69.611 (1.9 deg x 1.9 deg)
2015-09-18T07:24:24 120 C 114.926 -69.611 (1.9 deg x 1.9 deg)
2015-09-18T07:30:00 120 C 103.397 -70.305 (1.9 deg x 1.9 deg)
2015-09-18T07:32:12 120 C 103.397 -70.305 (1.9 deg x 1.9 deg)
2015-09-18T07:34:24 120 C 103.395 -70.305 (1.9 deg x 1.9 deg)
2015-09-18T07:39:59 120 C 109.403 -69.706 (1.9 deg x 1.9 deg)
2015-09-18T07:42:11 120 C 109.402 -69.706 (1.9 deg x 1.9 deg)
2015-09-18T07:44:23 120 C 109.401 -69.706 (1.9 deg x 1.9 deg)
2015-09-18T07:50:00 120 C 114.911 -69.608 (1.9 deg x 1.9 deg)
2015-09-18T07:52:11 120 C 114.911 -69.608 (1.9 deg x 1.9 deg)
2015-09-18T07:54:23 120 C 114.909 -69.608 (1.9 deg x 1.9 deg)
2015-09-18T07:59:59 120 C 109.398 -69.710 (1.9 deg x 1.9 deg)
2015-09-18T08:02:11 120 C 109.396 -69.711 (1.9 deg x 1.9 deg)
2015-09-18T08:04:23 120 C 109.393 -69.711 (1.9 deg x 1.9 deg)
2015-09-18T08:10:00 120 C 114.903 -69.605 (1.9 deg x 1.9 deg)
2015-09-18T08:12:12 120 C 114.902 -69.605 (1.9 deg x 1.9 deg)
2015-09-18T08:14:24 120 C 114.901 -69.605 (1.9 deg x 1.9 deg)
2015-09-18T08:30:00 120 C 109.385 -69.704 (1.9 deg x 1.9 deg)
2015-09-18T08:32:12 120 C 109.383 -69.705 (1.9 deg x 1.9 deg)
2015-09-18T08:34:24 120 C 109.380 -69.705 (1.9 deg x 1.9 deg)
2015-09-18T08:39:59 120 C 114.888 -69.602 (1.9 deg x 1.9 deg)
2015-09-18T08:42:11 120 C 114.887 -69.602 (1.9 deg x 1.9 deg)
2015-09-18T08:44:23 120 C 114.885 -69.601 (1.9 deg x 1.9 deg)
2015-09-18T09:00:00 120 C 109.376 -69.707 (1.9 deg x 1.9 deg)
2015-09-18T09:02:12 120 C 109.375 -69.707 (1.9 deg x 1.9 deg)
2015-09-18T09:04:24 120 C 109.373 -69.706 (1.9 deg x 1.9 deg)
2015-09-18T09:09:59 120 C 114.880 -69.602 (1.9 deg x 1.9 deg)
2015-09-18T09:12:11 120 C 114.877 -69.602 (1.9 deg x 1.9 deg)
2015-09-18T09:14:23 120 C 114.876 -69.602 (1.9 deg x 1.9 deg)
2015-09-18T09:29:59 120 C 109.372 -69.701 (1.9 deg x 1.9 deg)
2015-09-18T09:32:11 120 C 109.370 -69.701 (1.9 deg x 1.9 deg)
2015-09-18T09:34:23 120 C 109.369 -69.701 (1.9 deg x 1.9 deg)
2015-09-18T09:40:00 120 C 114.872 -69.604 (1.9 deg x 1.9 deg)
2015-09-18T09:42:12 120 C 114.871 -69.604 (1.9 deg x 1.9 deg)
2015-09-18T09:44:24 120 C 114.869 -69.603 (1.9 deg x 1.9 deg)
2015-09-18T09:49:59 120 C 124.890 -67.995 (1.9 deg x 1.9 deg)
2015-09-18T09:52:11 120 C 124.889 -67.994 (1.9 deg x 1.9 deg)
2015-09-19T03:30:01 120 C 129.861 +5.232 (1.9 deg x 1.9 deg)
2015-09-19T03:32:11 120 C 129.862 +5.232 (1.9 deg x 1.9 deg)
2015-09-19T03:34:22 120 C 129.865 +5.232 (1.9 deg x 1.9 deg)
2015-09-19T03:40:01 120 C 134.260 +3.229 (1.9 deg x 1.9 deg)
2015-09-19T03:42:12 120 C 134.261 +3.229 (1.9 deg x 1.9 deg)
2015-09-19T03:44:22 120 C 134.263 +3.229 (1.9 deg x 1.9 deg)
2015-09-19T03:50:01 120 C 134.462 +6.236 (1.9 deg x 1.9 deg)
2015-09-19T03:52:11 120 C 134.465 +6.236 (1.9 deg x 1.9 deg)
2015-09-19T03:54:22 120 C 134.466 +6.236 (1.9 deg x 1.9 deg)
2015-09-19T04:00:01 120 C 129.864 +5.231 (1.9 deg x 1.9 deg)
2015-09-19T04:02:13 120 C 129.864 +5.231 (1.9 deg x 1.9 deg)
2015-09-19T04:04:24 120 C 129.865 +5.231 (1.9 deg x 1.9 deg)
2015-09-19T04:10:01 120 C 134.263 +3.230 (1.9 deg x 1.9 deg)
2015-09-19T04:12:11 120 C 134.264 +3.230 (1.9 deg x 1.9 deg)
2015-09-19T04:14:23 120 C 134.266 +3.230 (1.9 deg x 1.9 deg)
[GCN OPS NOTE(20sep15): This Circular was originally published on 20:41 19-Sep-2015 UT.]