On July 29, 2021, Boeing’s CST-100 Starliner spacecraft is shown on top of the United Launch Alliance (ULA) Atlas V rocket in ULA’s Vertical Integration Facility.
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.
A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen near the Vertical Integration Facility at Cape Canaveral Space Force Station in Florida. Photo by NASA/Joel Kowsky
NASA and Boeing are continuing to work through steps to determine what caused the unexpected valve position indications on the CST-100 Starliner propulsion system during the countdown for its Aug. 3 launch attempt.
Now that the United Launch Alliance Atlas V rocket with the Starliner spacecraft on top has been returned to its Vertical Integration Facility (VIF) at Space Launch Complex-41 on Cape Canaveral Space Force Station, engineers will have direct access to Starliner with the assembly of support structures around the spacecraft’s service module for continued troubleshooting.
Boeing will power up Starliner, allowing the vehicle to receive commands providing the teams with real-time data.
The data will drive any corrective measures that may be necessary to ensure Starliner is ready for launch. When NASA’s Commercial Crew Program and Boeing agree the issue is resolved, a new launch opportunity will be selected, taking into account the readiness of all parties involved and the availability of the International Space Station and its crew to support the spacecraft’s arrival.
A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen on the launch pad on Thursday, July 29, 2021, at Space Launch Complex 41 in preparation for the Orbital Flight Test-2 (OFT-2) mission at Cape Canaveral Space Force Station in Florida. Photo Credit: (NASA/Aubrey Gemignani)
NASA and Boeing are continuing to work through steps to determine what caused the unexpected valve position indications on the CST-100 Starliner propulsion system.
The United Launch Alliance Atlas V with the Starliner spacecraft on top will be returned to its Vertical Integration Facility (VIF) at Launch Complex-41 on Cape Canaveral Space Force Station Thursday where engineers will have direct access to Starliner for continued troubleshooting.
The data will drive any corrective measures that may be necessary to ensure Starliner is ready for launch. When NASA’s Commercial Crew Program and Boeing Space agree the issue is resolved, a new launch opportunity will be selected, taking into account the readiness of all parties involved.
“The Boeing and NASA teams are working methodically to understand what caused the valve indications on the Starliner service module propulsion system,” Steve Stich, manager of the Commercial Crew Program, said. “The troubleshooting in the Vertical Integration Facility will help focus on potential causes and next steps before we fly the OFT-2 mission.”
Early in the launch countdown for the Tuesday, Aug. 3 launch attempt, engineers detected indications that not all of Starliner’s propulsion system valves were in the proper configuration needed for launch of the company’s second uncrewed orbital flight test to the International Space Station, a mission designed to test the end-to-end capabilities of the crew-capable system as part of NASA’s Commercial Crew Program.
Mission teams decided to halt the countdown to further analyze the issue, which was conducted later Tuesday via several steps to troubleshoot the incorrect valve indications, including cycling the service module propulsion system valves.
After presenting the data to NASA and Boeing managers, it was decided to relocate the Atlas V and Starliner to the VIF for further inspection and testing where access to the spacecraft is available. Engineering teams have ruled out a number of potential causes, including software, and the direct access is required to continue the assessment.
“This mission is extremely important for the Commercial Crew Program on the path to the Boeing Crewed Flight Test,” Stich said. “We will fly the mission when we are ready. I am extremely proud of the NASA and Boeing teams for their professionalism, perseverance, and methodical approach to solving complex problems.”
NASA and Boeing will take whatever time is necessary to ensure Starliner is ready for its important uncrewed flight test to the space station and will look for the next available opportunity after resolution of the issue.
NASA and Boeing are standing down from the Wednesday, Aug. 4, launch attempt of the agency’s Orbital Flight Test-2 to the International Space Station as mission teams continue to examine the cause of the unexpected valve position indications on the CST-100 Starliner propulsion system.
Early in the launch countdown for the Aug. 3 attempt, mission teams detected indications that not all valves were in the proper configuration needed for launch. Mission teams decided to halt the countdown to further analyze the issue.
NASA and Boeing worked through several steps to troubleshoot the incorrect valve indications, including cycling the service module propulsion system valves, within the current configuration of the Starliner and United Launch Alliance Atlas V rocket at Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida.
Mission teams have decided to roll the Atlas V and Starliner back to the Vertical Integration Facility (VIF) for further inspection and testing where access to the spacecraft is available. Boeing will power down the Starliner spacecraft this evening. The move to the VIF is expected to take place as early as tomorrow.
Engineering teams have ruled out a number of potential causes, including software, but additional time is needed to complete the assessment.
NASA and Boeing will take whatever time is necessary to ensure Starliner is ready for its important uncrewed flight test to the space station and will look for the next available opportunity after resolution of the issue.
The United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner atop is on the pad at Space Launch Complex-41 on Aug. 3, 2021. Photo credit: NASA
NASA, Boeing and United Launch Alliance (ULA) have scrubbed the Aug. 3 launch attempt of the agency’s Orbital Flight Test-2 to the International Space Station due to unexpected valve position indications in the Starliner propulsion system. ULA will begin removing propellant from the Atlas V rocket.
Pending resolution of the forward work, our next available launch opportunity would be 12:57 p.m. EDT on Wednesday, Aug. 4.
For more information on the technical issue, click here.
A United Launch Alliance Atlas V rocket with Boeing’s CST-100 Starliner spacecraft onboard is seen as it is rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex 41 ahead of the Orbital Flight Test-2 (OFT-2) mission, Thursday, July 29, 2021 at Cape Canaveral Space Force Station in Florida. Boeing’s Orbital Flight Test-2 will be Starliner’s second uncrewed flight test and will dock to the International Space Station as part of NASA’s Commercial Crew Program. Photo credit: NASA/Aubrey Gemignani
This morning, Aug. 2, Boeing’s CST-100 Starliner spacecraft and the United Launch Alliance (ULA) Atlas V rocket rolled out of the ULA Vertical Integration Facility (VIF) to return to the launch pad at Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida ahead of NASA’s Boeing Orbital Flight Test-2 mission to the International Space Station. Liftoff is scheduled for 1:20 p.m. EDT on Tuesday, Aug. 3.
Starliner and the Atlas V rocket made the first trip to the launch pad on July 29, but rolled back to the VIF on July 30 to avoid potential inclement weather.
For a launch Tuesday, meteorologists with the U.S. Space Force 45th Weather Squadron are predicting a 60% chance of favorable weather. The primary weather concerns for launch day are the cumulus cloud rule, lightning rule, and thick cloud rule violations during the instantaneous launch window.
NASA TV will cover the upcoming prelaunch, launch, and docking activities. Mission coverage is as follows (all times Eastern):
Tuesday, Aug. 3
12:30 p.m. – NASA TV launch coverage begins for a targeted 1:20 p.m. liftoff. NASA TV will have continuous coverage through Starliner orbital insertion.
3:30 p.m. (approximately) – Postlaunch news conference on NASA TV.
Wednesday, Aug. 4
10:30 a.m. – NASA TV rendezvous and docking coverage begins.
On July 29, 2021, Boeing’s CST-100 Starliner spacecraft and the United Launch Alliance Atlas V rocket rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida. Starliner will launch on the Atlas V for Boeing’s second uncrewed Orbital Flight Test (OFT-2) for NASA’s Commercial Crew Program. OFT-2 is an important uncrewed mission designed to test the end-to-end capabilities of the new system for NASA’s Commercial Crew Program. Photo credit: United Launch Alliance
Boeing’s Starliner spacecraft on the United Launch Alliance (ULA) Atlas V rocket was rolled back from the launch pad at Cape Canaveral Space Force Station in Florida to ULA’s nearby Vertical Integration Facility on July 30 to avoid potential inclement weather in advance of Orbital Flight Test-2’s (OFT-2) launch to the International Space Station.
NASA and Boeing agreed to stand down from the July 30 attempt to allow the space station team time to continue working checkouts of the newly arrived Roscosmos’ Nauka module and to ensure the station will be ready for Starliner’s arrival. The earliest possible launch opportunity to the space station is no earlier than 1:20 p.m. EDT Tuesday, Aug. 3, from Space Launch Complex-41.
The U.S. Space Force 45th Weather Squadron predicts a 60% chance of favorable conditions for the Aug. 3 launch opportunity with the cumulous cloud rule, surface electric fields rule, and the lighting rule as the primary weather concerns.
The OFT-2 mission for NASA’s Commercial Crew Program will test the end-to-end capabilities of Starliner from launch to docking to a return to Earth in the desert of the western United States.
On July 29, 2021, Boeing’s CST-100 Starliner spacecraft and the United Launch Alliance Atlas V rocket rolled out of the Vertical Integration Facility to the launch pad at Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida. Starliner will launch on the Atlas V for Boeing’s second uncrewed Orbital Flight Test (OFT-2) for NASA’s Commercial Crew Program. OFT-2 is an important uncrewed mission designed to test the end-to-end capabilities of the new system for NASA’s Commercial Crew Program. Photo credit: United Launch Alliance
This morning, July 29, Boeing’s CST-100 Starliner spacecraft and the United Launch Alliance (ULA) Atlas V rocket rolled out of the ULA Vertical Integration Facility to the launch pad at Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida ahead of NASA’s Boeing Orbital Flight Test-2 mission to the International Space Station. Liftoff is scheduled for 2:53 p.m. EDT on Friday, July 30.
Current weather shows a 50 percent chance of favorable conditions. Cumulous clouds, surface electricity, and lightning remain the primary concerns for the instantaneous launch window.
OFT-2, Boeing’s second uncrewed flight, is designed to test the end-to-end capabilities of the new system for NASA’s Commercial Crew Program.
NASA will host two briefings on Thursday, July 29, in advance of the mission. Participants include NASA Administrator Bill Nelson, agency leaders, as well as the crew of Boeing’s Crew Flight Test, the mission that will follow the OFT-2 mission. NASA TV launch coverage begins at 2 p.m. on Friday, July 30, and will provide continuous coverage through Starliner orbital insertion.
Expedition 65 prime crew member Oleg Novitskiy of Roscosmos, holds up a toy cat used in the Soyuz capsule to help indicate the start of weightlessness after leaving the Earth’s atmosphere. Stuffed animals are a traditional category for zero-gravity indicators. Photo credit: NASA/GCTC/Andrey Shelepin
We asked our virtual guests what they would take with them as a zero-gravity indicator if they were launching on the Boeing Starliner spacecraft on July 30 for NASA’s Boeing Orbital Flight Test-2 mission. More than 2,600 of you responded. Two large categories of items emerged: stuffed animals and balls.
Nearly 10% of people suggested something stuffed. This is a traditional category for zero-gravity indicators. Some guests suggested very specific stuffed animals – Snoopy, Baby Yoda, Fiona the hippo from the Cincinnati Zoo, or a something that had been in their family for multiple generations.
We don’t know where they’re shopping, but a few guests suggested stuffed people, Tory Bruno of United Launch Alliance, Jeff Goldblum, and Patrick Star from Sponge Bob fame to be exact. One guest had the lovely idea that “stuffed animals of some sort that would then be donated to sick children.”
Another 10% of respondents suggested some type of ball – or every type of ball. There were tennis balls, baseballs, bouncy balls, disco balls, cannon balls, and balls of yarn. There was the very specific Euro 2020 official football. Finally, there was a handful of very wise respondents packing stress balls.
Water was another frequent suggestion – sometimes with a goldfish in it for good measure, sometimes with an eye toward drinking it if need be! Balloons, books, and M&M’s also were mentioned in multiples. The few suggestions of glitter would no doubt be to the consternation of Starliner engineers! One guest hurt our heads by suggesting “a toy Starliner with a smaller Starliner inside the toy, and to check for zero gravity we look inside the toy to see if the smaller Starliner is floating.”
Our favorite suggestion? A clear cube containing everyone’s name on a card who registered for the event. We’d have trouble fitting the more than 13,000 of you there! But we love the thought.
We’d love to have you along for the next virtual guest program – you can join our standing list or register for specific upcoming missions by visiting nasa.gov/virtualguest. In addition to sharing their thoughts on a launch-related question, virtual guests receive emails with curated launch resources, notifications about NASA activities, and updates on any launch time or date changes.
Whether it’s your first stamp or your eighth, NASA hopes you’ll print, fold, and get ready to fill your virtual passport. Stamps will be emailed following docking to all virtual attendees who registered by email.
Liftoff of the United Launch Alliance Atlas V rocket with Starliner is targeted for 2:53 p.m. EDT Friday, July 30, from Space Launch Complex-41 on Cape Canaveral Space Force Station in Florida.
Boeing’s CST-100 Starliner spacecraft and the United Launch Alliance (ULA) Atlas V rocket will roll out to the launch pad at Space Launch Complex-41 on Cape Canaveral Space Force Station Thursday morning. Photo credit: Boeing/Damon Tucci
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.
