{"id":23747,"date":"2022-12-17T13:30:16","date_gmt":"2022-12-17T13:30:16","guid":{"rendered":"https:\/\/www.africa-press.net\/mauritius\/all-news\/nasas-orion-capsule-on-target-for-splashdown"},"modified":"2022-12-17T13:45:50","modified_gmt":"2022-12-17T13:45:50","slug":"nasas-orion-capsule-on-target-for-splashdown","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/mauritius\/all-news\/nasas-orion-capsule-on-target-for-splashdown","title":{"rendered":"Nasa\u2019s Orion capsule on target for splashdown"},"content":{"rendered":"

Africa-Press – Mauritius. <\/strong><\/span>The US space agency Nasa is all set to bring home its Orion capsule. The spaceship, which has been on a three-week journey around the Moon, is targeting a splashdown in the Pacific Ocean off California.<\/p>\n

Uncrewed for this test flight, the capsule is expected to carry astronauts on its next outing, assuming everything works as planned in the coming hours.<\/p>\n

The parachute-assisted drop into the sea should occur at about 09:40 local time (17:40 GMT). The exercise is part of Nasa\u2019s Artemis programme, a quest to take people back to the lunar surface later this decade.<\/p>\n

Fittingly, Sunday marks exactly 50 years since this feat was last achieved by the crew of Apollo 17. Orion was lined up for the day\u2019s event by its European propulsion module.<\/p>\n

This part of the spacecraft executed a big engine manoeuvre last Monday that pushed the ship away from the Moon and in the direction of Earth. The incoming velocity will be extremely high.<\/p>\n

The capsule will be moving at 40,000km\/h (25,000mph) \u2013 or 32 times the speed of sound \u2013 when it touches the top of our planet\u2019s atmosphere. What happens next is critical to the success of the whole endeavour.<\/p>\n

Friction and pressure on Orion\u2019s forward-facing surface will generate temperatures likely to reach close to 3,000C (5,000F). The shielding that covers this part of the spacecraft has to handle this challenge if Orion is ever to be trusted to carry astronauts in the future.<\/p>\n

\u201cThis is our priority one objective, for a reason,\u201d said Artemis mission manager Mike Sarafin.<\/p>\n

\u201cThe heatshield is a safety-critical piece of equipment.<\/p>\n

It is designed to protect the spacecraft and its passengers, the astronauts on board. So it needs to work. \u201d Nasa already has experience of an Orion re-entry.<\/p>\n

It conducted a previous uncrewed demonstration of the capsule in 2014. But the velocities \u2013 and heating conditions \u2013 were much lower during that test.<\/p>\n

What that earlier flight did do, however, was prove the effectiveness of the parachute system. Eleven chutes are used in sequence to slow the final part of the descent to the ocean\u2019s surface.<\/p>\n

The USS Portland will be waiting to pick up Orion. In contrast to the helicopters that performed hoisted recoveries of Apollo capsules, Orion will be floated into a flooded well deck at the back of the navy vessel.<\/p>\n

Nasa\u2019s Melissa Jones, who\u2019s in charge of the procedure, said various tests and assessments would be conducted while Orion was still in the water. \u201cWe\u2019ll be very careful with the capsule; we\u2019ll get about an hour and a half of imagery of that heatshield before it touches anything in the ship.<\/p>\n

We want to make sure we document every bit of that so that we have the data that Orion needs to understand the performance of the capsule going forward,\u201d she told reporters.<\/p>\n

Orion is coming down a little short of the location that was originally planned. The space agency had been targeting a point closer to San Diego, but a forecasted cold front is likely to generate an unwelcome swell in the ocean, along with rain.<\/p>\n

A decision was made therefore to come down roughly 550km up range, off Mexico\u2019s Baja California Peninsula. Watching the re-entry will be Nasa\u2019s partner on the mission \u2013 the European Space Agency.<\/p>\n

Esa provided the service module that has been shepherding Orion on its journey these past three weeks. It won\u2019t splash down with the capsule. It will instead be detached about 20 minutes prior to re-entry and will be destroyed as it falls towards Earth over the South Pacific.<\/p>\n

European states are about to consider whether to build an independent crew transport system of their own. The performance of their Orion service module will give them food for thought.<\/p>\n

\u201cIt\u2019s a very good starting point, a very good foundation; I\u2019ve never doubted the technical capabilities of European industry,\u201d observed Esa\u2019s director of human and robotic spaceflight, Dr David Parker, but he noted also that Europe was still missing experience of some key additional technologies, including a rocket certified to launch humans.<\/p>\n

For the time being, Europe will keep supplying service modules. The unit for the next Artemis mission has already been delivered to Nasa, as has a third vehicle \u2013 the one that will be used on the lunar landing mission, currently scheduled for late 2025 or in 2026.<\/p>\n

For More News And Analysis About Mauritius<\/a> Follow Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Mauritius. The US space agency Nasa is all set to bring home its Orion capsule. The spaceship, which has been on a three-week journey around the Moon, is targeting a splashdown in the Pacific Ocean off California. Uncrewed for this test flight, the capsule is expected to carry astronauts on its next outing, […]<\/p>\n","protected":false},"author":84,"featured_media":23746,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,9],"tags":[233,245,241,1960],"class_list":["post-23747","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-miscellaneous","tag-africa-press","tag-africa-press-mauritius","tag-mauritius","tag-nasa"],"yoast_head":"\nNasa\u2019s Orion capsule on target for splashdown - Mauritius<\/title>\n<meta name=\"description\" content=\"The US space agency Nasa is all set to bring home its Orion capsule. 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