T-2 hours (10:13 am EDT) The United Launch Alliance Atlas V 401 rocket with GPS IIF-11 is seen at sunset yesterday, 30 October 2015.
AV-60 is scheduled to launch at 12:13 pm EDT this afternoon (31 October). Launch was originally scheduled for yesterday, but a malfunctioning water valve at SLC-41 used in the water suppression system had to be replaced, causing a 24-hour postponement of the mission.
Stacking on the CST-100 Starliner Crew Access Tower has reached its halfway point! Construction teams have been taking advantage of the nearly four week interval between Atlas V flights by stacking four of the seven segments of the CAT. The base segment was transported to SLC-41 and installed on September 9.
The tower was built in segments off-site in order to allow construction to continue without inhibiting Atlas V launches. The final segments will be stacked following the Morelos 3 mission October 2.
Following assembly of the CAT segments, workers will then outfit the tower with umbilicals, piping, and an elevator. A crew access arm to the CST-100 Starliner will be installed at the tower’s 180-foot level.