April 21st 2013 - 22:00 UTC

Videos and photos of the launch and launch replays are now available at the bottom of this page.

April 21st 2013 - 21:10 UTC

T+10 Minutes: SEPARATION! The Cygnus simulator has separated from the second stage at 158 statute miles!

April 21st 2013 - 21:09 UTC

T+8 Minutes, 40 Seconds: The second stage has tailed off on time.

April 21st 2013 - 21:06 UTC

T+6 Minutes: The second stage solid propellent motor has ignited!

April 21st 2013 - 21:06 UTC

T+5 Minutes: The payload fairing has successfully jettisoned!

April 21st 2013 - 21:06 UTC

T+5 Minutes: Onboard cameras are now showing inside the fairing which is due to separate in a few seconds.

April 21st 2013 - 21:05 UTC

T+4 Minutes: Onboard cameras show a beautiful first stage separation. The vehicle will coast for nearly 2 minutes before second stage ignition.

April 21st 2013 - 21:04 UTC

T+3 Minutes: The two main engines have shutdown on time quickly followed by the separation of the first stage.

April 21st 2013 - 21:03 UTC

T+2 Minutes: Vehicle now at 100,000 feet.

April 21st 2013 - 21:02 UTC

T+1 Minute, 30 Seconds: The vehicle is passing through maximum dynamic pressure.

April 21st 2013 - 21:01 UTC

T+1 Minute: Everything is nominal as the rocket passes 10,000 feet.

April 21st 2013 - 21:00 UTC

T-0: LIFTOFF! The inaugural Antares rocket has launched from Wallops Flight Facility.

April 21st 2013 - 21:00 UTC

T-0: The two main engines on the very first Antares rocket have ignited.

April 21st 2013 - 20:59 UTC

T-30 Seconds: Everything remains well with no issues in the count.

April 21st 2013 - 20:59 UTC

T-1 Minute: Highspeed cameras around the pad have been activated.

April 21st 2013 - 20:57 UTC

T-3 Minutes: The terminal count has been entered, the auto sequencer beginning.

April 21st 2013 - 20:55 UTC

T-5 Minutes: Everything remains well, Terminal count will begin at T-3 Minutes and 30 seconds.

April 21st 2013 - 20:50 UTC

T-10 Minutes: Launch team is 'GO' to proceed.

April 21st 2013 - 20:49 UTC

T-12 Minutes: The launch director is currently polling the team for GO or NO GO.

April 21st 2013 - 20:40 UTC

T-20 Minutes: The vehicle and range are both green at this time.

April 21st 2013 - 20:32 UTC

T-30 Minutes: Main engine chilldown is underway.

April 21st 2013 - 20:28 UTC

T-35 Minutes: The teams have given a GO to begin chilldown of the two main engines on the first stage, this will limit the launch window to 10 minutes. Chilldown ensures the engines are conditioned for the extremely cold liquid oxygen.

April 21st 2013 - 20:10 UTC

T-50 Minutes: All remains well in the countdown tonight of the very first Antares rocket with a Cygnus simulator payload. The simulator carries many dozens of sensors that will record the environment during launch, no more telemetry is expected after the Cygnus separates from the second stage of Antares.

April 21st 2013 - 19:40 UTC

Refined kerosene is beginning to be loaded into the Antares first stage at Wallops Flight Facility.

April 21st 2013 - 19:35 UTC

A GO has been given for fueling of the Antares first stage. The first stage consumes liquid oxygen and refined kerosene, the second stage uses a solid propellent which was preloaded during assembly of the vehicle.

April 21st 2013 - 17:00 UTC

It's a gorgeous day at the Wallops Flight Facility with an overall chance of acceptable weather at liftoff at 80%. The only concern is on surface winds.

April 20th 2013 - 20:35 UTC

SCRUBBED FOR TODAY - The high level winds just did not allow a launch opportunity today and teams are now scrubbing for tomorrow with a launch window opening at 21:00 UTC.

April 20th 2013 - 20:00 UTC

The liftoff time for tonight has been pushed back to 22:10 UTC due to high level winds, the worry is should the rocket experience a problem debris could land in populated areas around the flight path.

April 19th 2013 - 14:30 UTC

The latest weather briefing has a 90% chance of favourable weather for todays launch attempt, the window opens at 21:00 UTC, the launch window will be decreased to just 10-15 minutes once a T-0 has been set.

April 19th 2013 - 08:00 UTC

A second launch attempt has been set for April 20th 2013 at 21:00 UTC with far improved weather odds, An attempt on Sunday is also available.

April 17th 2013 - 20:52 UTC

Teams are now safing the vehicle, there will be no launch today. Looking at a possible 48 hour turnaround.

April 17th 2013 - 20:48 UTC

ABORT. There has been a premature disconnect of an umbilical on the second stage.

April 17th 2013 - 20:40 UTC

The flight termination system for the rocket has been activated.

April 17th 2013 - 20:32 UTC

Main engine chilldown has begun, decreasing the launch window to 10 minutes.

April 17th 2013 - 20:03 UTC

Orbital report the first stage fueling has been completed, Weather conditions have also improved with a 60% chance of green conditions at lift off.

April 17th 2013 - 19:45 UTC

Fueling is underway at Wallops Flight Facility where the first Antares rocket to launch sits ready. Weather will be very tricky in co-operating with with just a 45% chnce of green conditions. Tomorrow the conditions improve ever slightly to 50%.

April 16th 2013 - 15:30 UTC

Video of the processing highlights of the Antares first rocket launch is now available at the bottom of this page.

April 15th 2013 - 06:00 UTC

Technicians are currently replacing a valve in one of the two first stage engines after it was found to be faulty during a wet dress rehearsal on Saturday 13th. Assuming all goes well with the new wet dress rehearsal, now set for Monday 15th, the Antares will be set to launch on Wednesday 17th. Weather conditions are poor with a possibility to high winds resulting in just a 30% probability of green weather for launch.

April 7th 2013 - 15:00 UTC

The Antares 110 rocket was successfully rolled out and erected at Launch Pad 0A at Wallops Flight Facility last night, April 6th. The rocket has two stages and a Cygnus payload simulator. Launch is on track for April 17th 2013 at 21:00 UTC.