{"id":10081,"date":"2024-06-22T21:27:51","date_gmt":"2024-06-22T13:27:51","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/nasa-again-delays-starliner-undocking-return-to-earth\/"},"modified":"2024-06-22T21:27:51","modified_gmt":"2024-06-22T13:27:51","slug":"nasa-again-delays-starliner-undocking-return-to-earth","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/nasa-again-delays-starliner-undocking-return-to-earth\/","title":{"rendered":"NASA again delays Starliner undocking, return to Earth"},"content":{"rendered":"
\"\"
The Starliner spacecraft on NASA\u2019s Boeing Crew Flight Test is pictured docked to the Harmony module\u2019s forward port as the International Space Station orbited 263 miles above the Mediterranean Sea. Image: NASA.<\/figcaption><\/figure>\n

NASA and Boeing managers have again decided to extend the Starliner crew capsule\u2019s stay at the International Space Station, passing up a June 26 re-entry to allow more time for analysis and testing to make sure helium leaks and thruster failures are fully understood, officials said late Friday.<\/p>\n

NASA plans to hold a formal re-entry readiness review before setting a new landing target date. Given the on-going analysis, the Starliner\u2019s undocking and return to Earth likely will slip past two already planned space station spacewalks on Monday and July 2.<\/p>\n

In the meantime, Starliner commander Barry \u201cButch\u201d Wilmore and co-pilot Sunita Williams are still cleared to undock and fly home at any time if a station malfunction or other issue crops up that requires a quick departure. As such, officials say they are not stranded in space.<\/p>\n

\u201cWe are taking our time and following our standard mission management team process,\u201d Steve Stich, manager of NASA\u2019s Commercial Crew Program, said in a statement. \u201cWe are letting the data drive our decision making relative to managing the small helium system leaks and thruster performance we observed during rendezvous and docking.\u201d<\/p>\n

In addition, he said, given the extended duration of the Starliner mission \u201cit is appropriate for us to complete an agency-level review, similar to what was done ahead of the NASA\u2019s SpaceX Demo-2 return after two months on orbit, to document the agency\u2019s formal acceptance on proceeding as planned.\u201d<\/p>\n

\"\"
NASA\u2019s Boeing Crew Flight Test astronauts (from top) Butch Wilmore and Suni Williams pose for a portrait inside the vestibule between the forward port on the International Space Station\u2019s Harmony module and Boeing\u2019s Starliner spacecraft. Image: NASA<\/figcaption><\/figure>\n

He was referring to the first flight of astronauts aboard SpaceX\u2019s Crew Dragon ferry ship in 2020. But the Demo-2 mission did not experience problems like the ones noted so far in the Starliner\u2019s first piloted test flight.<\/p>\n

The issue for Starliner troubleshooters is that the helium leakage and the thrusters in question are located in the Starliner\u2019s drum-shaped service module, which is attached to the base of the crew capsule. The service module is jettisoned prior to re-entry and burns up in the atmosphere.<\/p>\n

Given that engineers will not be able to examine the actual hardware after the fact, NASA and Boeing managers want to give them as much time as possible to review telemetry, to continue testing and to polish contingency scenarios in case additional problems show up after undocking.<\/p>\n

They also want to learn as much as possible about what might be needed to prevent similar problems in downstream flights. NASA managers were hoping to certify the Starliner for operational crew rotation flights to the ISS starting early next year, but it\u2019s not yet clear if that\u2019s remains a realistic goal.<\/p>\n

In any case, Stich said the Starliner \u201cis performing well in orbit while docked to the space station.\u201d<\/p>\n

\u201cWe are strategically using the extra time to clear a path for some critical station activities while completing readiness for Butch and Suni\u2019s return on Starliner and gaining valuable insight into the system upgrades we will want to make for post-certification missions.\u201d<\/p>\n

Already running four years behind schedule, the Starliner was launched June 5, a month later than planned due to minor problems with its Atlas 5 rocket, trouble with a countdown computer and because of an initial helium leak in the system used to pressurize the capsule\u2019s thrusters.<\/p>\n

NASA and Boeing managers decided the leak was too small to pose a safety threat and the ship was cleared for launch. Once in orbit and on the way to the space station, however, four more helium leaks developed and the Starliner\u2019s flight computer took seven maneuvering jets off line when the telemetry did not match pre-launch expectations.<\/p>\n

One thruster was deemed unusable going forward, but the others were successfully test fired last Saturday. That \u201chot-fire\u201d test gave engineers confidence the jets needed for post-undocking maneuvers and the critical de-orbit \u201cburn\u201d will work as needed to drop the ship out of orbit for re-entry.<\/p>\n

Likewise, officials said they were confident the helium leaks could be managed even if one or more gets worse after undocking. Only seven hours of helium is needed for the return to Earth and the Starliner has more than 10 times that amount left on board.<\/p>\n","protected":false},"excerpt":{"rendered":"

The Starliner spacecraft on NASA\u2019s Boeing Crew Flight Test is pictured docked to the Harmony module\u2019s forward port as the International Space Station orbited 263 miles above the Mediterranean Sea. Image: NASA. NASA and Boeing managers have again decided to extend the Starliner crew capsule\u2019s stay at the International Space Station, passing up a June […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[670,1163,1305,190,1306,1166],"class_list":["post-10081","post","type-post","status-publish","format-standard","hentry","category-news","tag-boeing","tag-butch-wilmore","tag-cst-100-crew-flight-test","tag-nasa","tag-starliner","tag-suni-williams"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/10081"}],"collection":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/comments?post=10081"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/10081\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=10081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=10081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=10081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}