[vsnet-grb-info 16682] Trigger 646721: Swift detection of V 404 Cyg

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  17963
SUBJECT: Trigger 646721: Swift detection of V 404 Cyg
DATE:    15/06/26 13:03:00 GMT
FROM:    Scott Barthelmy at NASA/GSFC  <scott at milkyway.gsfc.nasa.gov>

S. D. Barthelmy (GSFC) and B. Sbarufatti (INAF-OAB/PSU) report on
behalf of the Swift Team:

At 12:49:38 UT, the Swift Burst Alert Telescope (BAT) triggered and
located V404 Cyg (trigger=646721).  Swift was already observing this location
because of a TOO commanded upload.  The BAT on-board calculated location is 
RA, Dec 306.006, +33.868 which is 
   RA(J2000)  =  20h 24m 02s
   Dec(J2000) = +33d 52' 06"
with an uncertainty of 3 arcmin (radius, 90% containment, including 
systematic uncertainty).  We are not reporting a light curve due to a loss
of a data packet in the TDRSS real-time.