Four hours until Atlas launch; No issues

After 24-hour delay, an Atlas 5 rocket is ready at launch complex 41.

Today's Atlas 5 launch is on schedule to loft a military communications satellite in a launch window from 8:22 to 9:33 p.m. EDT.

"We are working no issues and the weather forecast is still 80 percent go for launch," said a ULA spokesman.

If successful, the launch will orbit the first of five advanced military communications satellites.

The first Wideband Global SATCOM satellite will provide as much communication power as the military's entire present system of ten satellites. U.S. tactical forces around the world will rely on WGS, which will provide computer information and video information from Predator drones.

The military now relies heavily on commercial communication networks, and the WGS system could reduce costs while speeding up communication. The first satellite will go in orbit over the western Pacific, where many U.S. military assets are stationed.

Milestones before launch include:
12:20 p.m. - Apply power
1 p.m. - Weather briefing
7:12 p.m. - Begin Centaur engine chilldown
7:17 p.m. - Start flight control final preps
7:56 p.m. - Begin fuel fill sequence
8:08 p.m. - Ten-minute countdown hold
8:22 p.m. - Launch


Atlas Mission Booklet with details of the launch. Click here.

BOATERS, AVOID A $50,000 FINE:

The map hyperlinked below shows the Eastern Range's Launch Hazard Area for the scheduled launch of an Atlas V rocket on Wednesday between 8:22 and 9:33 p.m.

Mariners are asked to remain clear of the LHA from 6:15 p.m. to 10:20 p.m. Persons entering this zone while it’s an active launch area should be aware that penalties up to $50,000 are authorized to punish violators.

Map for mariners.

Read about the Wideband Global SATCOM satellite: Click here.



Illustration of WGS satellite