Antares Post-Launch Briefing Concludes; Blog Coverage Wraps

Orbital ATK’s Cygnus spacecraft is on its way to the International Space Station following a successful launch from NASA’s Wallops Flight Facility in Virginia on Nov. 12, 2017, at 7:19 a.m. EST. Loaded with 7,400 pounds of crew supplies, hardware and research equipment, Cygnus is slated to arrive at the International Space Station on Nov. 14 at about 4:50 a.m. ET.

The Orbital ATK Antares rocket, with the Cygnus spacecraft aboard, launches from Pad-0A, Sunday, Nov. 12, 2017, at NASA’s Wallops Flight Facility in Virginia. Orbital ATK’s eighth contracted cargo resupply mission with NASA to the International Space Station will deliver approximately 7,400 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory and its crew. Photo Credit: NASA/Bill Ingalls

Cygnus Solar Array Deployment

Both solar arrays aboard Orbital ATK’s Cygnus spacecraft have been deployed, as of 9:15 a.m. EST.

Illustration of Orbital ATK’s Cygnus cargo spacecraft with solar arrays deployed.

Orbital ATKs cargo spacecraft lifted off on the company’s Antares rocket from NASA’s Wallops Flight Facility at 7:19 a.m. EST on Nov. 12. A post-launch news conference is scheduled to begin on NASA TV at about 10:30 a.m. EST.

Liftoff!

The Orbital ATK Antares rocket, with the Cygnus spacecraft onboard, launches from Pad-0A, Sunday, Nov. 12, 2017 at NASA’s Wallops Flight Facility in Virginia. Orbital ATK’s eighth contracted cargo resupply mission with NASA to the International Space Station will deliver approximately 7,400 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory and its crew. Photo Credit: (NASA/Bill Ingalls)

Orbital ATK’s Antares rocket carrying the Cygnus cargo spacecraft lifted off at 7:19 a.m. EST and is on its way to the International Space Station. About an hour and half after launch, commands will be given to deploy the spacecraft’s solar arrays.

Launch coverage will continue on NASA TV at http://www.nasa.gov/nasatv until shortly after spacecraft separation and then resume for solar array deployment, which is expected to last about 30 minutes.

A post-launch news conference will follow and is scheduled to begin on NASA TV at approximately 10:30 a.m.

The cargo mission to the International Space Station is carrying about 7,400 pounds of supplies and payloads, including critical materials to directly support dozens of the more than 250 science and research investigations that will occur during the space station’s Expeditions 53 and 54.

Nov. 12 Antares Launch: Live Commentary Begins

NASA Television commentary has begun. Watch live: http://www.nasa.gov/live.

Countdown is continuing for the Nov. 12 launch of the eighth Orbital ATK contracted cargo resupply mission to the International Space Station. The Cygnus spacecraft is set to lift off on an Antares rocket from NASA’s Wallops Flight Facility in Virginia. Weather is 95 percent favorable for the launch, which has a five-minute window opening at 7:14 a.m. EST.

Credit: NASA

The cargo mission to the International Space Station will carry about 7,400 pounds of supplies and payloads, including critical materials to directly support dozens of the more than 250 science and research investigations that will occur during the space station’s Expeditions 53 and 54.

Fueling Begins for This Morning’s Antares Launch

Credit: NASA’s Wallops Flight Facility

With about 90 minutes until the launch window opens at 7:14 a.m. EST Nov. 12, fueling of Orbital ATK’s Antares rocket with liquid oxygen and rocket-grade kerosene is underway at NASA’s Wallops Flight Facility on Viriginia’s Eastern Shore. Current weather forecast for launch is 95 percent favorable.

Live video of the pad is available on Wallops’ Ustream. Launch commentary will begin at 6:45 a.m. on NASA TV.

Looking Ahead: OA-8 Launch Milestones on Nov. 12

On Nov. 12 Orbital ATK will launch its Cygnus spacecraft aboard an Antares rocket on a journey to the International Space Station from NASA’s Wallops Flight Facility on Virginia’s Eastern Shore. The five-minute launch window opens at 7:14 a.m. EST. Cygnus is carrying 7,400 pounds of crew supplies, hardware and scientific research equipment.

The Orbital ATK Antares rocket, with the Cygnus spacecraft aboard, is seen on launch Pad-0A, Saturday, Nov. 11, 2017, at NASA’s Wallops Flight Facility in Virginia. Orbital ATK’s eighth contracted cargo resupply mission with NASA to the International Space Station will deliver approximately 7,400 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory and its crew. Credit: NASA/Bill Ingalls

Milestones (Approximate Timing)

  • 12:50 a.m. EST — live video of the launch pad airs on Wallops’ Ustream
  • 6:45 a.m. — live launch commentary airs on NASA TV
  • 7:14 a.m. — five-minute launch window opens
  • Launch + 3.7 seconds — liftoff
  • L+ 3 min., 34 sec. — main engine cutoff (MECO)
  • L+ 3 min., 40 sec. — first stage separation
  • L+ 4 min., 11 sec. — fairing separtaion
  • L+ 4 min., 16 sec. — interstage separtaion
  • L+ 4 min., 24 sec. — second stage ignition
  • L+ 7 min., 6 sec. — second stage burnout; orbit insertion
  • L+ 9 min., 6 sec. — Cygnus  spacecraft separates — 121.3 miles altitude; 16,846 mph

Forecast for Nov. 12: 90 Percent Favorable

Aside from the slight chance of cloud ceilings at 2,000 feet, conditions look excellent with no real weather concerns at this time for the launch of Orbital ATK’s Antares rocket carrying the Cygnus cargo spacecraft on Sunday, Nov. 12. The five-minute launch window opens at 7:14 a.m. EST. The Wallops range forecast is 90 percent favorable.

The Orbital ATK Antares rocket, with the Cygnus spacecraft aboard, is seen on launch Pad-0A, Friday, Nov. 10, 2017 at NASA’s Wallops Flight Facility in Virginia. Orbital ATK’s eighth contracted cargo resupply mission with NASA to the International Space Station will deliver about 7,400 pounds of science and research, crew supplies and vehicle hardware to the orbital laboratory and its crew. Credit: NASA/Bill Ingalls

Canadian high pressure will ridge over the Northeast and Mid-Atlantic states today with dry and unseasonably cold conditions. The area of high pressure will remain over the Northeast and Mid-Atlantic states through Sunday morning’s launch attempt, before sliding off the coast Sunday afternoon. The low-level stratus cloudiness off the Wallops coastline this morning will remain off the Wallops coastline today. As the area of high pressure begins to slide off the Northeast coastline Sunday morning, there is a slight chance of the low-level stratus moving onshore over the Wallops Region Sunday morning.

The launch was scrubbed for Nov. 11 after a small aircraft was detected in the vicinity of the launch pad, flying at about 500 feet approximately 6 miles offshore.

OA-8 Live Coverage Underway

Countdown is continuing for today’s scheduled launch of the eighth Orbital ATK contracted cargo resupply mission to the International Space Station. The Cygnus spacecraft is set to lift off on an Antares rocket from NASA’s Wallops Flight Facility in Virginia. Weather is favorable for liftoff at 7:37 a.m. EST.

NASA Television coverage has begun. Watch live: http://www.nasa.gov/live.

Credit: NASA’s Wallops Flight Facility

The cargo mission to the International Space Station will carry about 7,400 pounds of supplies and payloads, including critical materials to directly support dozens of the more than 250 science and research investigations that will occur during the space station’s Expeditions 53 and 54.

Fueling Begins for Antares OA-8

Credit: NASA’s Wallops Flight Facility

With just about 90 minutes until launch, fueling has begun for Orbital ATK’s Antares rocket, carrying the International Space Station-bound Cygnus cargo spacecraft. The launch window opens at 7:37 a.m. EST.

The latest forecast puts weather at 100-percent favorable for the launch: “zero percent chance for violation.”