Antigua tracking offline (mandatory asset) back up in :15 >> new launch time 1930GMT (2:30 eastern)
spaceflightnow.com
1907 GMT (2:07 p.m. EST)
The Atlas team is getting data from the latest weather balloon. The wind information is sent to Lockheed Martin's facilities in Denver for analysis and creation of a new flight profile.
1905 GMT (2:05 p.m. EST)
A problem is now being reported with the Antigua downrange tracking station. That site must be operating for range safety and tracking for the Atlas 5 rocket to be cleared for launch. The Range expects the station to be ready again around 2:20 p.m.
1900 GMT (2:00 p.m. EST)
The upper level winds remain "no go" at this time. The latest flight profile did not find acceptable conditions. Also of concern, the pad winds remain right at the constraint red line limit.
There are no other technical problems being addressed. Countdown clocks continue to hold at T-minus 4 minutes, targeting a possible liftoff time of 2:30 p.m. EST.
1855 GMT (1:55 p.m. EST)
NEW LAUNCH TIME. Liftoff has been pushed back to 2:30 p.m. EST.