TITLE: GCN CIRCULAR NUMBER: 21731 SUBJECT: LIGO/Virgo G299232 TZAC/TAROT observations DATE: 17/08/28 13:25:58 GMT FROM: Michel Boer at CESR-CNRS M. Boer, R. Laugier (CNRS/ARTEMIS/UCA/OCA), A. Klotz (CNRS/IRAP/UPS), K. Noysena (ARTEMIS/IRAP/CNRS/UPS), report on behalf the TZAC collaboration: We have observed part of the localization of the LIGO/Virgo candidate G299232 during the nights 2017-08-25 from 19h12 UT with TRE (5 fields, total 80sq. deg.) and TCA (5 fields, total 18sq.deg.). The position of the center of the fields are reported below. Analysis is ongoing. Site RA DEC Start of the observations (UT) TCA 02:06:31 40:39:53 2017-08-25T19:43:50.376 TCA 02:03:52 38:48:17 2017-08-25T19:48:10.376 TCA 02:09:21 42:31:29 2017-08-25T19:28:20.376 TCA 02:01:22 36:56:41 2017-08-25T19:56:50.376 TCA 02:12:23 44:23:05 2017-08-25T19:12:50.376 TRE 02:04:08 40:12:00 2017-08-25T21:04:09.792 TRE 02:00:24 36:00:00 2017-08-25T20:28:39.792 TRE 01:53:50 40:12:00 2017-08-25T20:35:09.792 TRE 01:53:14 36:00:00 2017-08-25T19:59:39.792 TRE 01:56:40 31:48:00 2017-08-25T20:06:09.792 TRE 02:26:07 40:12:00 2017-08-25T20:54:39.792 Note: TRE TAROT-La RĂ©union; TCA TAROT-Calern