TITLE: GCN CIRCULAR NUMBER: 24584 SUBJECT: LIGO/Virgo S190512at: Updated sky localization DATE: 19/05/17 17:42:03 GMT FROM: Deep Chatterjee at University of Wisconsin, Milwaukee The LIGO Scientific Collaboration and the Virgo Collaboration report: We have re-analyzed LIGO and Virgo data around the time of the compact binary coalescence (CBC) candidate S190512at (GCN 24503). Parameter estimation has been performed using LALInference [1] and a new sky map, LALInference.fits.gz, distributed via GCN Notice, is available for retrieval from the GraceDB event page: https://gracedb.ligo.org/superevents/S190512at The preferred skymap at this time is LALInference.fits.gz. For the LALInference.fits.gz skymap, the 90% credible region is 252 deg2. Marginalized over the whole sky, the a posteriori luminosity distance estimate is 1388 +/- 322 Mpc (a posteriori mean +/- standard deviation). For further information about analysis methodology and the contents of this alert, refer to the LIGO/Virgo Public Alerts User Guide . [1] Veitch et al. PRD 91, 042003 (2015)