Spaceflight Now Home





The Mission




Rocket: Atlas 5 (AV-039)
Variant: AV-401
Payload: GPS 2F-4
Date: May 15, 2013
Window: 5:38-5:56 p.m. EDT (2138-2156 GMT)
Site: SLC-41, Cape Canaveral, Florida
Feed: SES 2, Transp. 21, C-band, 87° West

Mission Status Center

Story: Atlas stacking

Story: GPS preps

Pix: Payload mate

Pix: Rollout

Pix: On the pad

Launch events timeline

Ground track map

GPS 2F fact sheet

Atlas 5 illustration

Our Atlas archive




Mission Reports




For 12 years, Spaceflight Now has been providing unrivaled coverage of U.S. space launches. Comprehensive reports and voluminous amounts of video are available in our archives.
Space Shuttle
Atlas | Delta | Pegasus
Minotaur | Taurus | Falcon
Titan



NewsAlert



Sign up for our NewsAlert service and have the latest space news e-mailed direct to your desktop.

Enter your e-mail address:

Privacy note: your e-mail address will not be used for any other purpose.



Advertisement






Space Books







Atlas/GPS 2F-4 launch timeline
BY SPACEFLIGHT NOW
Posted: May 3, 2013


T-00:02.7 Engine Start
The Russian-designed RD-180 main engine is ignited and undergoes checkout prior to launch.
T+00:01.1 Liftoff
The United Launch Alliance Atlas 5 vehicle, designated AV-039, lifts off and begins a vertical rise away from Complex 41 at Cape Canaveral Air Force Station, Florida.
T+01:18.4 Mach 1 and Max Q
The Atlas rocket achieves Mach 1 some 78 seconds into the flight, then passes through the region of maximum dynamic pressure at 91 seconds.
T+04:04.4 Main Engine Cutoff
The RD-180 main engine completes its firing after consuming its kerosene and liquid oxygen fuel supply in the Atlas first stage.
T+04:10.4 Stage Separation
The Common Core Booster first stage of the Atlas 5 rocket separates from the Centaur upper stage. Over the next few seconds, the Centaur engine liquid hydrogen and liquid oxygen systems are readied for ignition.
T+04:20.4 Centaur Ignition 1
The Centaur RL10 engine ignites for the longer of the two upper stage firings. This burn will inject the Centaur stage and GPS 2F-4 spacecraft into a transfer orbit.
T+04:28.4 Nose Cone Jettison
The two-piece payload fairing that protected the GPS 2F-4 craft during the atmospheric ascent is separated to reveal the satellite to space.
T+17:07.1 Centaur Cutoff 1
The Centaur engine shuts down after arriving in a planned elliptical transfer orbit. The vehicle enters a three-hour coast period before arriving at the required location in space for the second burn.
T+3:17:37:8 Centaur Ignition 2
The Centaur re-ignites to circularize the orbit and enter the GPS satellite constellation.
T+3:19:07.1 Centaur Cutoff 2
At the conclusion of its second firing, the Centaur will have delivered the GPS spacecraft into the targeted circular orbit of 11,047 nautical miles, inclined 55 degrees to the equator.
T+3:23:52.8 Spacecraft Separation
The Global Positioning System 2F-4 navigation satellite is released into orbit from the Centaur upper stage to complete the AV-039 launch.

Data source: United Launch Alliance.



STS-134 Patch

Free shipping to U.S. addresses!

The final planned flight of space shuttle Endeavour is symbolized in the official embroidered crew patch for STS-134. Available in our store!
 U.S. STORE
 WORLDWIDE STORE

Final Shuttle Mission Patch

Free shipping to U.S. addresses!

The crew emblem for the final space shuttle mission is now available in our store. Get this piece of history!
 U.S. STORE
 WORLDWIDE STORE

Apollo Collage
This beautiful one piece set features the Apollo program emblem surrounded by the individual mission logos.
 U.S. STORE

STS-133 Patch

Free shipping to U.S. addresses!

The final planned flight of space shuttle Discovery is symbolized in the official embroidered crew patch for STS-133. Available in our store!
 U.S. STORE
 WORLDWIDE STORE

Anniversary Shuttle Patch

Free shipping to U.S. addresses!

This embroidered patch commemorates the 30th anniversary of the Space Shuttle Program. The design features the space shuttle Columbia's historic maiden flight of April 12, 1981.
 U.S. STORE
 WORLDWIDE STORE

Mercury anniversary

Free shipping to U.S. addresses!


Celebrate the 50th anniversary of Alan Shephard's historic Mercury mission with this collectors' item, the official commemorative embroidered patch.
 U.S. STORE
 WORLDWIDE STORE
MISSION STATUS CENTER

INDEX | PLUS | NEWS ARCHIVE | LAUNCH SCHEDULE
ASTRONOMY NOW | STORE

ADVERTISE

© 2014 Spaceflight Now Inc.