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In a media teleconference ahead of a troublesome Crew Dragon return, officials from theNational Aeronautics and Space Administration (NASA) and Space Exploration Technologies Corporation (SpaceX), assured attendees that the Crew Dragon spacecraft docked to the International Space Station (ISS) remains healthy and in shape for return. The pair have been trying to balance the return of NASA’s SpaceX Crew-2 mission and the liftoff for the Crew-3 mission, with the return initially planned to take place after the launch.
However, weather and medical problems have injected uncertainty into these plans, with the Crew-2 spacecraft now set to undock from the ISS tomorrow in the afternoon and complete a short eight-hour journey before splashing down on Earth at night.
SpaceX’s Shortest Time Between Dragon Landing And Launch Times Is Two Days Explains Official
During the conference, NASA’s deputy manager for the Commercial Crew Program (CCP), Mr. Ven Feng explained that weather constraints are the primary factor that have delayed NASA’s Crew-3 launch to next week, making the agency bring the Crew-2 return forward. The Crew-2 mission took the skies in April and has spent 198 days in orbit. The official also shared the details about the Crew-3 launch, which will be NASA and SpaceX’s second crewed launch this year.
According to him:
Following this, the discussion moved towards the Crew-2 Dragon Endeavour, which is about to enter its 200th day spent in orbit. The spacecraft has been certified by NASA and SpaceX for 210 days of orbital life, and at this front, both Mr. Feng and SpaceX’s director Dragon mission management, Ms. Sarah Walker, sounded confident about its health.
Earlier in the week we could tell the weather was going to be a challenge. We had a low pressure system moving through Florida causing constraints on the Eastern seaboard. For those of you who were in Flordia yesterday, you got to experience it all those winds and rains were a challenge we were looking at for our first two launch attempts which would have been scheduled for today and tomorrow. We were hoping the weather would improve Monday to allow for a direct handover but that wasn’t looking good either. So at the same time, we noticed a high pressure system moving behind the storm front, the likelihood of increasing favorable splashdown weather for Crew-2 in the Gulf. We asked the joint teams to assess and begin some early planning for indirect handover while keeping the Mondy launch opportunity open.
Responding to a question about SpaceX’s turnaround times between landing and launching spacecraft, the SpaceX executive replied that:
Mr. Feng also confirmed that while the certified time limit for the Dragon’s orbital life is 210 days, extending the vehicle’s life is possible. Building upon this, Walker explained that the 200 days limit was set according to NASA specifications, with the hardware being certified to meet these.
The NASA official shared some of the different systems on the Crew Dragon that need to be evaluated to determine how long the Dragon can spend in orbit. According to him:
The SpaceX Crew-2 is set to undock from the ISS at 14:05 EST tomorrow and spend roughly eight hours during its return journey before splashing down at 22:33. On it, NASA astronauts Meghan McArthur and Shane Kimbrough, the European Space Agency (ESA) astronaut Thomas Pesquet and Japan Space Exploration Agency (JAXA) astronaut Akihiko Hoshide will return to Earth after having spent six months in orbit.
There’s the exterior top protection system outside which is exposed all the full radiation of the Sun as it’s exposed up in space those walls RTV so there are just many different aspects and those three I mentioned are probably sort of the top aspects along with anything consumables that might be inside like for instance the carbon dioxide removal or other consumables used inside the Dragon. So it’s a fairly, it’s a very comprehensive analysis we’d have to go back, our teams have already sorted that relook. They’ve done initial look, they’re doing a relook and this particular case teams are primarily focused on that return. But for the future, we’re always keeping in mind that 210 life.