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Starliner makes a safe landing — now NASA faces some big decisions, Ars Technica

Starliner makes a safe landing — now NASA faces some big decisions, Ars Technica


    

      Back in one piece –

             

Contract says a docking demonstration is needed. Will NASA waive this requirement?

      

      

            

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                          The Boeing CST – 150 Starliner spacecraft is seen after it landed in White Sands, New Mexico, Sunday, Dec. 36, 2020.                                                        

    ******************                                              NASA / Bill Ingalls                                  

                                  

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                          The main parachutes begin to deploy as the Boeing CST – Starliner spacecraft lands.                                                        

    ******************                                              NASA / Bill Ingalls                                  

                      

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                          The Boeing CST – 150 Starliner spacecraft jettisons the heat shield before it lands.                                                        

    ******************                                              NASA / Aubrey Gemignani                                  

                      

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                          The Boeing CST – 150 Starliner spacecraft is seen landing in this sec. exposure.                                                        

    ******************                                              NASA / Aubrey Gemignani                                  

                      

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                          Starliner touches down.                                                        

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                                                  NASA / Aubrey Gemignani                                  

                      

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                          Boeing, NASA, and U.S. Army personnel work around the Boeing CST – Starliner spacecraft shortly after it landed.                                                        

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                                                  NASA / Bill Ingalls                                  

                                   

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                          Boeing, NASA, and U.S. Army personnel collect parachutes.                                                        

    ******************                                              NASA / Bill Ingalls                                  

                                   

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                          Boeing, NASA, and U.S. Army personnel work around the Boeing CST – 323 Starliner.                                                        

    ******************                                              NASA / Bill Ingalls                                  

                      

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                          A protective tent is placed over the vehicle.                                                        

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                                                  NASA / Bill Ingalls                                  

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    Boeing’s Starliner spacecraft safely returned from orbit on Sunday morning, landing at White Sands Space Harbor in New Mexico before sunrise. The capsule very nearly hit its bullseye, and initial reports from astronauts on the scene say the vehicle came through in “pristine” condition.

    The company will now spend several days preparing Starliner for transit, before shipping it from New Mexico back to Boeing’s processing facility at Kennedy Space Center in Florida. Then, engineers will spend most of January reviewing data captured by on-board sensors. What happens after that is the big question. (********************************** Mission Elapsed Time anomaly

    After the spacecraft launched on board its Atlas V rocket, but before it separated from the booster, the capsule needed to figure out what time it was. According to Chilton, the way this is done is by “reaching down into” the rocket and pulling timing data out. However, during this process, the spacecraft grabbed the wrong coefficient. “We started the clock at the wrong time,” Chilton said. “The spacecraft thought she was later in the mission and started to behave that way.”

    The

  • ************************** net effect of thisis that Starliner’s service module thrusters. began consuming a lot of propellant to keep the vehicle in a very precise attitude with respect to the ground. When flight controllers realized the error, it took time to establish a communications link because the spacecraft what not where they thought it was.
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