[vsnet-grb-info 22409] LIGO/Virgo S190512at: INTEGRAL inactive at the time of the event

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  24508
SUBJECT: LIGO/Virgo S190512at: INTEGRAL inactive at the time of the event
DATE:    19/05/12 20:19:13 GMT
FROM:    James Rodi at IAPS-INAF  <james.rodi at inaf.it>

Enrico Bozzo, Volodymyr Savchenko, Carlo Ferrigno  (ISDC/UniGE, Switzerland)

James Rodi,  (IAPS-Roma, Italy)
Sandro Mereghetti (INAF IASF-Milano, Italy)

on behalf of the INTEGRAL multi-messenger collaboration:
https://www.astro.unige.ch/cdci/integral-multimessenger-collaboration

The INTEGRAL spacecraft has a highly elliptical orbit and the
instruments are switched off around the perigee passage, every 2.6 days,
to prevent radiation-induced damages. Unfortunately, at the time
of the LIGO/Virgo trigger S190512at (2019-05-12 18:07:14.422 UTC) the
spacecraft was preparing to start the observations after the perigee
passage between the orbits number 2089 and 2090 and no
scientific instrument data are available. INTEGRAL observations will
restart at approximately 2019-05-13 03:08:07 UTC.