{"id":10500,"date":"2022-05-21T23:16:46","date_gmt":"2022-05-21T15:16:46","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/boeings-starliner-capsule-completes-first-nail-biting-docking-at-space-station\/"},"modified":"2022-05-21T23:16:46","modified_gmt":"2022-05-21T15:16:46","slug":"boeings-starliner-capsule-completes-first-nail-biting-docking-at-space-station","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/boeings-starliner-capsule-completes-first-nail-biting-docking-at-space-station\/","title":{"rendered":"Boeing\u2019s Starliner capsule completes first \u201cnail-biting\u201d docking at space station"},"content":{"rendered":"<figure id=\"attachment_57072\" aria-describedby=\"caption-attachment-57072\" style=\"width: 900px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-57072\" src=\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/starlinerdocking1.jpg\" alt=\"\" width=\"900\" height=\"1349\" srcset=\"https:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/starlinerdocking1.jpg 900w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/starlinerdocking1-200x300.jpg 200w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/starlinerdocking1-678x1016.jpg 678w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/starlinerdocking1-768x1151.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\"><figcaption id=\"caption-attachment-57072\" class=\"wp-caption-text\">Russian cosmonaut Sergey Korsakov captured this view of the Starliner spacecraft approaching the International Space Station. Credit: Sergey Korsakov \/ Roscosmos<\/figcaption><\/figure>\n<p>Boeing\u2019s Starliner crew capsule finally reached the International Space Station Friday night with a \u201cnail-biting\u201d rendezvous and docking, overcoming several technical glitches to accomplish a long-awaited objective for the spacecraft before NASA clears it to ferry astronauts to the research complex.<\/p>\n<p>The crew capsule docked at the forward end of the station\u2019s Harmony module at 8:28 p.m. EDT Friday (0028 GMT Saturday), using vision-based navigation to autonomously guide itself to the docking target.<\/p>\n<p>There were no astronauts on the Starliner spacecraft that docked Friday night, but the human-rated ship is designed to carry people to and from the space station. The Boeing crew carrier launched Thursday evening from Cape Canaveral on top of a United Launch Alliance Atlas 5 rocket, beginning the Orbital Flight Test-2 mission, a shakedown cruise for the gumdrop-shaped capsule.<\/p>\n<p>The Boeing Starliner spacecraft glided to a docking next to SpaceX\u2019s Dragon crew ferry ship, marking the first time NASA\u2019s two commercial crew contractors had capsules attached to the station at the same time.<\/p>\n<p>The docking marked a \u201cvery historic day\u201d for NASA\u2019s commercial crew program, said Steve Stich, the NASA manager who oversees the agency\u2019s fixed-price crew transportation contracts with Boeing and SpaceX. The contracts were signed after the retirement of NASA\u2019s space shuttle fleet, which left the United States without its own crew launch capability.<\/p>\n<p>\u201cOur goal was to have two redundant crew transportation systems,\u201d Stich said. \u201cThat\u2019s been our goal since inception, and today that goal became true when Starliner docked.\u201d<\/p>\n<p>NASA invested around $5 billion for design and development of the SpaceX Dragon and Boeing Starliner crew capsules, plus billions more for transportation services once the spacecraft were certified for human flights.<\/p>\n<p>The companies also put in an unspecified level of private funding, a requirement under the public-private partnership arrangement pursued by NASA\u2019s commercial crew program since 2010.<\/p>\n<p>The Starliner program is running years late, following a 2019 test flight \u2014 known as OFT-1 \u2014 that was cut short by software problems, preventing the spacecraft from reaching the space station. Boeing tried to launch a redo of the 2019 test flight last August, but officials called off the launch after finding stuck valves in the capsule\u2019s propulsion system.<\/p>\n<p>With the software and valves woes resolved, Boeing\u2019s Starliner crew capsule lifted off Thursday, safely arrived in orbit, and made its way to the space station. The spacecraft persevered through several technical issues on the journey to the orbiting research outpost.<\/p>\n<p>The main technical problems so far on the OFT-2 mission include the failure of four rocket jets on the Starliner service module, pressure spikes inside two thermal coolant loops, and a hitch with the capsule\u2019s docking system discovered just before link-up with the space station.<\/p>\n<p>The 15-foot-wide (4.6-meter) Starliner spacecraft held position about 32 feet (10 meters) from the station for more than an hour, a delay primarily caused by a problem with a backup system on the NASA-designed docking mechanism on the nose of the crew capsule. Ground controllers retracted and re-extended the docking ring, reset the system, then gave the green light for Starliner to press in for docking.<\/p>\n<p>Starliner\u2019s thermal imaging navigation sensors \u2014 part of the spacecraft\u2019s&nbsp;Vision-based, Electro-Optical Sensor Tracking Assembly, or VESTA, system \u2014 gathered data on the range and closing rate between the spacecraft and the space station.<\/p>\n<p>\u201cThe technology around VESTA is really amazing. It was really something to watch,\u201d said Mark Nappi, Boeing\u2019s Starliner program manager. \u201cAnd it was really nail-biting watching that vehicle sit out there for a while until it was time to come in. So a lot of very happy folks in the Boeing program today because of what we saw.\u201d<\/p>\n<p><iframe id=\"twitter-widget-0\" scrolling=\"no\" frameborder=\"0\" allowtransparency=\"true\" allowfullscreen=\"true\" class=\"\" style=\"position: absolute; visibility: hidden; width: 0px; height: 0px; display: block; flex-grow: 1;\" title=\"X Post\" src=\"https:\/\/platform.twitter.com\/embed\/Tweet.html?dnt=false&amp;embedId=twitter-widget-0&amp;features=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%3D%3D&amp;frame=false&amp;hideCard=false&amp;hideThread=false&amp;id=1527809754072064002&amp;lang=en&amp;origin=https%3A%2F%2Fspaceflightnow.com%2F2022%2F05%2F21%2Fboeings-starliner-capsule-completes-first-nail-biting-docking-at-space-station%2F&amp;sessionId=94a55c5cb873ae228d08a8200cf26e6acf041049&amp;theme=light&amp;widgetsVersion=6a3ad42b224df%3A1778106238597&amp;width=550px\" data-tweet-id=\"1527809754072064002\"><\/iframe><\/p>\n<blockquote class=\"twitter-tweet\" data-twitter-extracted-i1782464606679670517=\"true\">\n<p dir=\"ltr\" lang=\"en\">Contact and capture.<\/p>\n<p>Boeing\u2019s Starliner crew capsule has arrived at the International Space Station for the first time, completing a major objective for this unpiloted Orbital Flight Test.https:\/\/t.co\/aw0ThNxJbJ pic.twitter.com\/chMvuu4TaO<\/p>\n<p>\u2014 Spaceflight Now (@SpaceflightNow) May 21, 2022<\/p>\n<\/blockquote>\n<p><script async=\"\" src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>The seven-person crew on the International Space Station monitored the spacecraft\u2019s approach, and tested their ability to send commands to the Starliner through a two-way radio communications system. Astronauts Kjell Lindgren and Bob Hines plan to open hatches and enter the Starliner crew cabin Saturday.<\/p>\n<p>Lindgren and Hines will inspect the interior of the capsule and perform voice checks through the spacecraft\u2019s communications system. The astronauts will also unpack about 500 pounds (227 kilograms) of food, electronics, and supplies delivered by the Starliner test flight, and replace it with cargo tagged for return to Earth.<\/p>\n<p>For the OFT-2 mission, Boeing placed an instrumented test dummy in the Starliner commander\u2019s seat to gather data on the environments astronauts will see on future missions. The mannequin, named \u201cRosie\u201d after the World War II icon Rosie the Riveter, wears a blue Boeing spacesuit.<\/p>\n<p>The Starliner will undock from the space station no earlier than May 25 for return to Earth, targeting a parachute-assisted, airbag-cushioned landing at White Sands Space Harbor in New Mexico.<\/p>\n<p>NASA and Boeing engineers will evaluate the results from the OFT-2 mission before approving the launch of the Crew Flight Test, the first Starliner mission with astronauts on-board.<\/p>\n<p>Officials said before the OFT-2 launch that Boeing aims to have the next crew capsule ready for flight by the end of the year, but managers won\u2019t commit to a launch schedule until they evaluate the results of the unpiloted demo mission.<\/p>\n<p>\u201cWe wouldn\u2019t be here right now if we weren\u2019t confident that this would be a successful mission,\u201d said Butch Wilmore, one of a group of NASA astronauts assigned to the Starliner program, in a press conference before the OFT-2 launch. \u201cBut there are always unknown unknowns. That\u2019s what historically has always gotten us. It\u2019s those things that we don\u2019t know about and we don\u2019t expect.\u201d<\/p>\n<figure id=\"attachment_57074\" aria-describedby=\"caption-attachment-57074\" style=\"width: 1200px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-57074\" src=\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/oft2docked_samantha.jpg\" alt=\"\" width=\"1200\" height=\"800\" srcset=\"https:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/oft2docked_samantha.jpg 1200w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/oft2docked_samantha-300x200.jpg 300w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/oft2docked_samantha-678x452.jpg 678w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2022\/05\/oft2docked_samantha-768x512.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"><figcaption id=\"caption-attachment-57074\" class=\"wp-caption-text\">European Space Agency astronaut Samantha Cristoforetti took this picture of Boeing\u2019s Starliner spacecraft docked at the International Space Station. Credit: Samantha Cristoforetti \/ European Space Agency \/ NASA<\/figcaption><\/figure>\n<p>While SpaceX\u2019s Dragon capsule launched with astronauts for the first time in May 2020, Boeing\u2019s Starliner has been grounded for two-and-a-half years after the abbreviated OFT1 mission. Under the terms of its contract with NASA, Boeing was on the hook for the delays, taking a $595 million charge to pay for the new OFT-2 test mission.<\/p>\n<p>SpaceX docked its human-rated Dragon capsule with the space station in March 2019 on an unlimited test flight similar to the Starliner\u2019s OFT-2 mission.<\/p>\n<p>After OFT-2, and following the next test flight with astronauts, NASA plans to certify the Starliner spacecraft for regular crew rotation missions to the space station. The agency plans to alternate between the Starliner and Dragon spacecraft, providing \u201cdissimilar redundancy\u201d for crew access to the station.<\/p>\n<p>\u201cWe\u2019re going to be focused on this mission, the flight test objectives, as well as getting ready for the flight test objectives for the Crew Flight Test, which has a goal of certification at the end, so that we as NASA can have regularly-scheduled dissimilar redundant flights to the International Space Station,\u201d said Mike Fincke, another NASA astronaut following the Starliner program. \u201cSo we can go up, one flight with Boeing, one flight with SpaceX.\u201d<\/p>\n<p>But the Starliner\u2019s OFT-2 mission still has several objectives to accomplish before landing in New Mexico. And engineers will analyze data from the spacecraft\u2019s thrusters, cooling system, and docking mechanism to make sure those those problems won\u2019t affect the Crew Test Flight.<\/p>\n<p>Nappi said engineers have settled on around three \u201cplausible\u201d causes for the shutdown of two of 12 aft-facing orbital maneuvering and attitude control, or OMAC, engines on the Starliner service module during an orbit insertion burn shortly after launch Thursday. He didn\u2019t provide details of the potential causes.<\/p>\n<p>Two smaller reaction control system thrusters stopped working during the Starliner\u2019s rendezvous with the space station Friday.&nbsp;But the spacecraft has \u201ctons of redundancy,\u201d Stich said, and ground teams in Houston cleared the Starliner to continue its approach to the 450-ton space station.<\/p>\n<p>The Starliner spacecraft\u2019s service module has four large launch abort engines, which are only used in the event of an emergency during the climb to space. There are 20 OMAC engines on the service module \u2014 12 are aft-facing \u2014 and 28 smaller reaction control system jets used for pointing. Another 12 thrusters on the reusable Starliner crew module will keep the capsule in the correct position during re-entry, following jettison of the disposable service module at the end of the mission.<\/p>\n<p>The cooling system controls the temperature on the Starliner spacecraft. There are two coolant loops on the Starliner spacecraft, each using a fluid similar to freon to carry heat generated by the spacecraft out to the radiators.<\/p>\n<p>Stich said moisture could have gotten into the coolant, leading to rising pressures and colder-than-expected temperatures in the thermal control system loops. Mission control responded before the problem because serious.<\/p>\n<p>\u201cThey were able to bypass those radiators, warm up the fluid,\u201d Stich said. \u201cThe loop recovered very quickly. And then they used that technique on both the loops at various times to manage the docking sequence today, and it worked really well. We had plenty of margin. Both loops were operational.\u201d<\/p>\n<p>\u201cThe team caught this before we had any real problem there,\u201d Nappi said.&nbsp;\u201cThey really saw some warning signs of the pump pressures going up, which indicated that we may have had a coolant that was getting \u2026 either ice in it, or just the density of the (fluid) was getting thicker.\u201d<\/p>\n<p>\u201cThis innovative technique of bypassing the radiators really saved the day for us,\u201d Stich said.<\/p>\n<p>\u201cWe\u2019ve learned so much fr0m this mission over the last 24 hours, and the data that we\u2019re getting from the mission and really fully checking out the system,\u201d said Kathy Lueders, associate administrator of NASA\u2019s space operations directorate. \u201cAll of that learning is going to help us get to our ultimate goal of flying our crews on this next flight.\u201d<\/p>\n<p><b><i>Email the author.<\/i><\/b><\/p>\n<p><em><strong>Follow Stephen Clark on Twitter: @StephenClark1.<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Russian cosmonaut Sergey Korsakov captured this view of the Starliner spacecraft approaching the International Space Station. Credit: Sergey Korsakov \/ Roscosmos Boeing\u2019s Starliner crew capsule finally reached the International Space Station Friday night with a \u201cnail-biting\u201d rendezvous and docking, overcoming several technical glitches to accomplish a long-awaited objective for the spacecraft before NASA clears it [&hellip;]<\/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":[],"class_list":["post-10500","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/10500"}],"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=10500"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/10500\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=10500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=10500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=10500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}