NASA continues to work side-by-side with Boeing to understanding the CST-100 Starliner’s service module valve performance, including the unexpected indications some of the valves were in the closed position during its Aug. 3 launch attempt of Orbital Flight Test-2 (OFT-2).
With troubleshooting ongoing in the United Launch Alliance Vertical Integration Facility at NASA’s Kennedy Space Center in Florida, where Starliner will be powered and run through various procedures to help understand the issue, NASA will move forward with the launch and berthing of an important cargo mission to the International Space Station.
Northrop Grumman’s Cygnus spacecraft is scheduled to launch on the company’s Antares rocket at 5:56 p.m. Tuesday, Aug. 10, from NASA’s Wallops Flight Facility in Wallops Island, Virginia, with capture and berthing scheduled two days later at about 6:10 a.m. EDT Thursday, Aug. 12.
In parallel, managers and engineers with NASA and Boeing will continue to evaluate schedules based on where the troubleshooting efforts take them before deciding when the next official launch for the OFT-2 mission will take place.
The rollout of the Starliner spacecraft and Atlas V launch vehicle is now targeted for Thursday, July 29 at 8 a.m. EDT.
The delay is due to an internet service provider outage that could not be resolved before the onset of predicted weather exceeding operational constraints. The OFT-2 launch, planned for Friday, July 30, at 2:53 p.m. EDT, remains on track.
Teams from NASA, Boeing and United Launch Alliance completed a launch readiness review on July 27 ahead of NASA’s Boeing Orbital Flight Test-2 mission to the International Space Station. The launch teams still are “go” for launch of Boeing’s CST-100 Starliner spacecraft on a mission to the microgravity laboratory on the company’s second uncrewed flight test.
Launch is scheduled at 2:53 p.m. EDT on Friday, July 30, on a United Launch Alliance Atlas V rocket from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida.
At 1 p.m., NASA will host a prelaunch news briefing at the agency’s Kennedy Space Center in Florida. Participants are:
Steve Stich, manager, NASA’s Commercial Crew Program
Joel Montalbano, manager, NASA’s International Space Station Program
John Vollmer, vice president and program manager, Boeing Commercial Crew Program
Gary Wentz, vice president, Government and Commercial Programs, ULA
Jennifer Buchli, deputy chief scientist, NASA’s International Space Station Program
Will Ulrich, launch weather officer, U.S. Space Force, 45th Weather Squadron
For a launch Friday, meteorologists with the U.S. Space Force 45th Weather Squadron are predicting a 40% chance of favorable weather. The primary weather concerns for launch day are the cumulus cloud rule, surface electric rule and lightning rule violations during the instantaneous launch window.
NASA will provide coverage of the upcoming prelaunch, launch, and docking activities for the agency’s Boeing Orbital Flight Test-2 (OFT-2) mission to the International Space Station. Scheduled to launch at 2:53 p.m. EDT Friday, July 30, OFT-2 is the second uncrewed flight for Boeing’s CST-100 Starliner spacecraft as part of the agency’s Commercial Crew Program.
Starliner will launch on a United Launch Alliance (ULA) Atlas V rocket from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida. About 31 minutes after launch, Starliner will reach its preliminary orbit. It is scheduled to dock to the space station at 3:06 p.m. Saturday, July 31. Prelaunch activities, launch, and docking will air live on NASA Television, the NASA app, and the agency’s website.
The spacecraft will carry more than 400 pounds of NASA cargo and crew supplies to the space station and return to Earth with more than 550 pounds of cargo, including reusable Nitrogen Oxygen Recharge System (NORS) tanks that provide breathable air to station crew members.
OFT-2 will demonstrate the end-to-end capabilities of the Starliner spacecraft and Atlas V rocket from launch to docking to a return to Earth in the desert of the western United States. The uncrewed mission will provide valuable data toward NASA certifying Boeing’s crew transportation system for regular flights with astronauts to and from the space station.
For a complete list of NASA’s Boeing OFT-2 briefings, events, and participants, read the full media advisory.
Boeing’s CST-100 Starliner spacecraft is fully assembled on its ride to space, the United Launch Alliance (ULA) Atlas V rocket, in preparation for the 2:53 p.m. Friday, July 30, launch of its second Orbital Flight Test (OFT-2) in collaboration with NASA’s Commercial Crew Program.
The joining of Atlas V and Starliner is a major milestone ahead of the second uncrewed flight test to demonstrate the system’s human transportation capabilities to the International Space Station. The test is the last flight before the Starliner system launches American astronauts on the Crew Flight Test to the microgravity laboratory – the first flight test with crew on board.
Early Saturday, the capsule traveled from Boeing’s Commercial Crew and Cargo Processing Facility (C3PF) at NASA’s Kennedy Space Center to ULA’s Vertical Integration Facility (VIF) at Cape Canaveral Space Force Station for hoisting on top of the Atlas V.
ULA’s motorized payload transporter, adapted to carry Starliner, moved at a top speed of 5 mph, heading from the C3PF, a former space shuttle hangar, eastward to the beach and then southward to Space Launch Complex-41. During the transport, Starliner was provided environmental controls also on the transporter deck.
Approaching the VIF, the transporter maneuvered up to the 30-story-tall building’s doorway and parked. A four-point lifting sling, called the Handling Fixture Hoist Tool, was connected to the Starliner for the overhead crane to carefully raise the capsule onto the Atlas V waiting inside the VIF aboard its mobile launch platform.
Starliner was positioned for mating to the launch vehicle adapter that serves as the spacecraft’s cradle on the rocket during ascent. The adapter also features the aeroskirt structure that smooths the air over the combined payload and Atlas V for aerodynamic stability.
Accommodations for Starliner in the VIF include a clean enclosure to enter the capsule’s crew module through the hatchway, access stands for technicians to detach the lift sling and complete preflight work to the spacecraft’s exterior, as well as power and data transmission umbilicals and purge and cooling lines.
Next up is the integrated systems test, a tip-to-tail electrical check of the 172-foot-tall Atlas V and Starliner stack.
OFT-2 will launch Starliner on a mission to rendezvous and dock to the International Space Station and then return about five to 10 days later to land in the western United States. The mission is an end-to-end test flight to prove the system is ready to fly astronauts.
Rosie the Rocketeer, Boeing’s anthropometric test device, claimed her spot once again in the commander’s seat inside the company’s CST-100 Starliner spacecraft for its second uncrewed Orbital Flight Test (OFT-2) for NASA’s Commercial Crew Program.
During OFT-1, Rosie was outfitted with 15 sensors to collect data on what astronauts will experience during flights on Starliner. For OFT-2, spacecraft data capture ports previously connected to Rosie’s 15 sensors will be used to collect data from sensors placed along the seat pallet, which is the infrastructure that holds all the crew seats in place.
OFT-2 is scheduled to lift off at 2:53 p.m. ET Friday, July 30, from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida bound for the International Space Station. Starliner is expected to spend five to 10 days in orbit before undocking and returning to Earth, touching down on land in the western United States.
NASA and Boeing are continuing preparations ahead of Starliner’s second uncrewed flight to prove the system can safely carry astronauts to and from the International Space Station.
Teams inside the Starliner production factory at NASA’s Kennedy Space Center in Florida recently began fueling the Starliner crew module and service module in preparation for launch of Orbital Flight Test-2 (OFT-2) at 2:53 p.m. EDT on Friday, July 30. The fueling operations are expected to complete this week as teams load propellant inside the facility’s Hazardous Processing Area and perform final spacecraft checks.
In the weeks ahead, mission control teams in Florida and Texas will continue conducting simulated mission dress rehearsals for the uncrewed OFT-2 and follow-on crewed missions. Starliner’s landing and recovery teams also will perform an on-site checkout of one of the vehicle’s landing zones.
NASA and Boeing are targeting 2:53 pm EDT Friday, July 30, for the launch of the company’s Starliner uncrewed Orbital Flight Test-2 (OFT-2) to the International Space Station. The updated launch target is supported by the station’s visiting vehicle schedule, Starliner readiness, and the availability of the United Launch Alliance Atlas V rocket.
“NASA and Boeing have done an incredible amount of work to get to this point,” said Steve Stich, Commercial Crew Program manager. “Our teams are ready for this important mission due to the coordinated efforts of many, including United Launch Alliance, NASA’s Launch Services Program, and the U.S. Space Force, which enabled us to establish this launch opportunity. We are looking forward to a successful OFT-2 mission.”
Boeing recently completed end-to-end testing of Starliner’s fight software by flying a five-day simulated OFT-2 mission to the station. The company will continue supporting NASA’s post-test reviews. All actions recommended by the NASA-Boeing Joint Independent Review Team following Starliner’s uncrewed first flight test in December 2019 are complete and pending closure by NASA.
Boeing also will continue processing hardware for its first flight of astronauts – the Crew Flight Test – until mid-summer. OFT-2 launch activities, including loading cargo and fueling the spacecraft are scheduled to begin around this time.
A launch on July 30 would lead to rendezvous and docking with the space station on the evening of Saturday, July 31.
NASA’s Commercial Crew Program is working with industry through a public-private partnership to provide safe, reliable, and cost-effective transportation to and from the International Space Station, which will allow for additional research time and will increase the opportunity for discovery aboard humanity’s testbed for exploration. The space station remains the springboard to space exploration, including future missions to the Moon and eventually to Mars.