[vsnet-grb-info 24986] LIGO/Virgo S200213t: Pre-discovery detections of MASTER OT J044008.76-651302.3
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Sun Feb 16 04:25:28 JST 2020
TITLE: GCN CIRCULAR
NUMBER: 27085
SUBJECT: LIGO/Virgo S200213t: Pre-discovery detections of MASTER OT J044008.76-651302.3
DATE: 20/02/15 19:23:48 GMT
FROM: Przemek Mroz at Warsaw U. Observatory <pmroz at astrouw.edu.pl>
Przemek Mroz (Caltech), Mariusz Gromadzki (Warsaw), Andrzej Udalski
(Warsaw), on behalf of the OGLE team:
MASTER OT J044008.76-651302.3 (GCN 27077) is located in the field LMC542
that is regularly observed by the <a
href="http://ogle.astrouw.edu.pl/">OGLE</a>
survey (Udalski et al. 2015). The object was detected on images taken on
2020-02-04 and 2020-02-12, before the LIGO/Virgo trigger. It is therefore
unrelated to S200213t.
I-band magnitudes:
2020-02-04 03:29:43UT 19.61
2020-02-12 01:53:19UT 18.91
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