|Major contractors||Orbital Sciences|
|Launch date||21 April 2013, 21:00EDT)UTC (17:00|
|Launch vehicle||Antares 110 A-ONE|
|Launch site||MARS LP-0A|
|Mission duration||603 seconds|
|Apoapsis||260 kilometres (160 mi)|
|Periapsis||241 kilometres (150 mi)|
The Antares A-ONE is the maiden flight of Orbital Sciences' Antares rocket with a boilerplate payload, the Cygnus Mass Simulator, which was launched April 21, 2013. It was launched from Pad 0A at the Mid-Atlantic Regional Spaceport (MARS) on Wallops Island, Virginia, USA. The boilerplate payload simulates the mass of the Cygnus cargo spacecraft. This dummy payload was sent into an orbit of "approximately 150 by 160 miles" (240 km x 260 km) with an inclination of 51.6 degrees.
The primary payload is the Cygnus Mass Simulator (CMS), it has a height of 199.25 inches (5,061 mm), a diameter of 114 inches (2,900 mm) and a mass of 8,400 pounds (3,800 kg). It is equipped with 22 accelerometers, 2 microphones, 12 digital thermometers, 24 thermocouples and 12 strain gages.
The secondary payloads are four CubeSats that were deployed from the CMS. Three of them are PhoneSats, 1U CubeSats built by NASA's Ames Research Center. These are named Alexander, Graham and Bell, after the inventor of the telephone. The purpose of these three satellites is to demonstrate the use of smart phones as avionics in Cube Sats. They each have a mass of 2.48 pounds (1.124 kg) and are powered by lithium batteries. The fourth nanosat is a 3U CubeSat, called Dove-1, built by Cosmogia Inc. It carries a "technology development Earth imagery experiment" using the Earth's magnetic field for attitude control.
- Lift off of the Antares rocket occurs two seconds after the first stage engines are ignited.
- The first stage engines shut off 228 seconds after lift-off.
- At 233 seconds, the second stage separates from the first.
- At 317 seconds, the payload fairing is jettisoned.
- At 326 seconds, the second stage's engine is ignited.
- At 481 seconds, the second stage is shut off.
- At 601 seconds, the Cygnus Mass Simulator separates.
|Attempt||Planned||Result||Turnaround||Reason||Decision point||Weather go (%)||Notes|
|1||17 Apr 2013, 5:00:00 pm||scrubbed||---||technical||17 Apr 2013, 4:44 pm(T-12 hold)||60%||Premature disconnect of upper stage umbilical cable during T-12 hold|
|2||20 Apr 2013, 6:10:00 pm||scrubbed||3 days, 1 hour, 10 minutes||weather||20 Apr 2013, 4:30 pm||90%|||
|3||21 Apr 2013, 5:00:00 pm||success||0 days, 22 hours, 50 minutes||80%||First flight of Antares|
- Clark, Stephen (20 April 2013). "Antares A-One Mission Status Center". Spaceflightnow. Retrieved 20 April 2013.
- Bergin, Chris (2012-02-22). "Space industry giants Orbital upbeat ahead of Antares debut". NasaSpaceflight (not affiliated with NASA). Retrieved 29 March 2012.
- NASA/OSC Pre-launch press conference
- "Antares A-ONE Test Launch Mission Overview". Orbital Sciences. 2013. Retrieved 11 April 2013.
- Orbital Successfully Launches First Antares Rocket, Orbital Sciences Press release, April 21, 2013
- Lindsey, Clark (21 March 2013). "Spaceflight Services installs four nanosats on Antares rocket". NewSpace Watch. Retrieved 21 March 2013. (subscription required (. ))
- "Space Act Agreement Amendment Seven between NASA and Orbital Sciences Corporation for COTS". NASA. March 2012. Retrieved 16 March 2013.
- "Antares Test Launch "A-ONE Mission" Overview Briefing". Orbital Sciences. 17 April 2013. Retrieved 18 April 2013.
- James Mason; Michael Safyan (1 January 2012). "Cosmogia Dove - 1 Orbital Debris Assessment Report". Cosmogia. Retrieved 18 April 2013.
- "last Orbital Sciences statement on weather", Twitter (Orbital Sciences Corporation)
- "Orbital Sciences statement on scrub", Twitter (Orbital Sciences Corporation)
- "Orbital Sciences statement on next attempt", Twitter (Orbital Sciences Corporation)
- "By WILLIAM HARWOOD / CBS NEWS/ April 21, 2013, 5:44 PM Antares rocket climbs into space on maiden flight". CBS News.
|Wikimedia Commons has media related to Antares A-ONE.|
- Antares Test Launch “A-ONE Mission” Overview Briefing
- Mission Overview
- NASA mission page
- Video of Pre-Flight Press Conference - Part 1 - YouTube (NASATelevision)
- Video of Pre-Flight Press Conference - Part 2 - YouTube (NASATelevision)
- Video of Antares A-One rocket being rolled out to launch pad - YouTube (NASATelevision)
- Video of the launch of the Antares A-One rocket - YouTube (NASATelevision)