{"id":17283,"date":"2023-06-21T20:28:07","date_gmt":"2023-06-21T12:28:07","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/spinning-spacecraft-adds-unwelcome-twist-to-starfish-spaces-docking-test-mission\/"},"modified":"2023-06-21T20:28:07","modified_gmt":"2023-06-21T12:28:07","slug":"spinning-spacecraft-adds-unwelcome-twist-to-starfish-spaces-docking-test-mission","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/spinning-spacecraft-adds-unwelcome-twist-to-starfish-spaces-docking-test-mission\/","title":{"rendered":"Spinning spacecraft adds unwelcome twist to Starfish Space\u2019s docking test mission"},"content":{"rendered":"<figure class=\"wp-block-image size-full-width\"><img fetchpriority=\"high\" decoding=\"async\" width=\"630\" height=\"420\" src=\"https:\/\/cdn.geekwire.com\/wp-content\/uploads\/2023\/06\/230620-otterpup-630x420.jpg\" alt=\"\" class=\"wp-image-778588\" srcset=\"https:\/\/cdn.geekwire.com\/wp-content\/uploads\/2023\/06\/230620-otterpup-630x420.jpg 630w, https:\/\/cdn.geekwire.com\/wp-content\/uploads\/2023\/06\/230620-otterpup-1260x840.jpg 1260w, https:\/\/cdn.geekwire.com\/wp-content\/uploads\/2023\/06\/230620-otterpup-768x512.jpg 768w, https:\/\/cdn.geekwire.com\/wp-content\/uploads\/2023\/06\/230620-otterpup-1536x1024.jpg 1536w, https:\/\/cdn.geekwire.com\/wp-content\/uploads\/2023\/06\/230620-otterpup-2048x1365.jpg 2048w\" sizes=\"(max-width: 630px) 100vw, 630px\"><figcaption data-nosnippet=\"\" class=\"wp-element-caption\">In this clean-room photo, Starfish Space\u2019s Otter Pup docking spacecraft is attached to the top of Launcher\u2019s Orbiter SN3 space tug. (Launcher \/ Starfish Space Photo)<\/figcaption><\/figure>\n<p>Starfish Space\u2019s ambitious mission to test its on-orbit satellite docking system has taken an unfortunate turn \u2014 or, more precisely, an unfortunate spin.<\/p>\n<p>The Kent, Wash.-based startup\u2019s Otter Pup spacecraft was one of 72 payloads sent into low Earth orbit on June 12 by SpaceX\u2019s Falcon 9 rocket for Transporter-8, a dedicated rideshare mission. Otter Pup and several other spacecraft were attached to Launcher\u2019s Orbiter SN3, a space tug that\u2019s designed to release piggyback payloads at different times.<\/p>\n<p>Soon after Orbiter SN3 separated from the Falcon 9 upper stage, it experienced an anomaly that set it spinning at a rate on the order of one revolution per second, far outside the bounds of normal operating conditions.<\/p>\n<p>By the time Launcher\u2019s team made contact with Orbiter, fuel and power levels were critically low \u2014 and the team made an emergency decision to deploy Otter Pup immediately. In a joint statement issued today, Launcher and Starfish Space said that quick action \u201cgave the Otter Pup mission a chance to continue.\u201d<\/p>\n<p>With assistance from Astro Digital and ground station partners, Starfish\u2019s team contacted Otter Pup and determined that it was generating power \u2014 but was also spinning because of the circumstances of its emergency deployment. <\/p>\n<p>Starfish co-founder Austin Link told GeekWire that the spacecraft, which is about the size of a dorm-room fridge, has drifted several kilometers away from its Orbiter mothership. \u201cThey\u2019re still in the same orbital neighborhood,\u201d he said.<\/p>\n<p>Starfish\u2019s mission plan called for Otter Pup to execute a series of maneuvers leading up to a rendezvous and docking with Orbiter. Such maneuvers would demonstrate that Starfish\u2019s guidance and navigation system, electric propulsion system and electrostatic capture system all work in orbit as designed. But Link said the maneuvers can\u2019t be done unless the spinning can be stabilized.<\/p>\n<p>\u201cWe\u2019re uncertain what the future for the vehicle is,\u201d Link said. \u201cIt\u2019ll be very challenging to de-tumble and arrest the momentum. There\u2019s also a chance that things have been damaged by this rotation rate that would prevent us from being able to do the mission going forward.\u201d<\/p>\n<p>And as if that\u2019s not challenging enough, Orbiter SN3 is no longer available as a docking target because of its own rotation rate. We\u2019ve reached out to California-based Launcher, which was recently acquired by a space station startup known as Vast, and will update this report with anything we hear back.<\/p>\n<p>\u201cOtter Pup is still alive, but the mission is hanging on by a thread,\u201d Link said.<\/p>\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\">\n<iframe loading=\"lazy\" title=\"Otter Pup by Starfish Space\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/QLWut6TFJBs?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"\"><\/iframe><br \/>\n<\/figure>\n<p>In the months ahead, Starfish\u2019s team will try to stabilize Otter Pup and determine the satellite\u2019s health. Link said the primary method for reducing rotation relies on the spacecraft\u2019s magnetic torque rods.<\/p>\n<p>\u201cThese are effectively electromagnets that you can use to push off of Earth\u2019s magnetic field to de-tumble the satellite,\u201d he explained. \u201cThey\u2019re designed for much lower rotation rates than what we\u2019re experiencing now, but they may be able to make a difference.\u201d<\/p>\n<p>If Otter Pup is healthy, and if the rotation rate can be reduced, Starfish Space could look for other satellites in nearby orbits to serve as replacement docking partners. Or it could demonstrate its maneuverability without doing a docking. <\/p>\n<p>\u201cIt\u2019s going to be more of a challenge than what we wanted it to be for this Otter Pup,\u201d Link said. \u201cWe\u2019ll keep working to see if we have a chance to test out some of the key technologies for this Otter Pup, and we\u2019ll also double down on other ways to test, both on orbit and terrestrially in the laboratory.\u201d<\/p>\n<p>If resurrecting the spinning Otter Pup is a lost cause, Link said \u201cthere are definitely scenarios where we would consider similar on-orbit demonstrations.\u201d The important thing is to prove out the technologies so that Starfish\u2019s team can move on to offering its customers a full-scale Otter docking craft to assist with satellite servicing or end-of-life disposal.<\/p>\n<p>\u201cIt\u2019s definitely not a mortal blow,\u201d Link said. \u201cThe company\u2019s fortunate to still be in a very strong position, with a great team and great technology and great customer interest. The on-orbit proof points for the technology are at the very least delayed, unfortunately, because of the position that Otter Pup was put in. But there are still a variety of paths forward for us to pursue. It\u2019s still a really exciting future, and we\u2019re really excited to chase after it.\u201d<\/p>\n<p>Starfish Space was founded in 2019 by Link and Trevor Bennett, both of whom previously worked as engineers at Jeff Bezos\u2019 Blue Origin space venture. The startup has attracted a little more than $21 million in funding from investors&nbsp;including Munich Re Ventures, Toyota Ventures, PSL Ventures, NFX and MaC Venture Capital. It has also received a series of technology development grants from the U.S. Space Force and NASA.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this clean-room photo, Starfish Space\u2019s Otter Pup docking spacecraft is attached to the top of Launcher\u2019s Orbiter SN3 space tug. (Launcher \/ Starfish Space Photo) Starfish Space\u2019s ambitious mission to test its on-orbit satellite docking system has taken an unfortunate turn \u2014 or, more precisely, an unfortunate spin. The Kent, Wash.-based startup\u2019s Otter Pup [&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":[4553,20,442,4344],"class_list":["post-17283","post","type-post","status-publish","format-standard","hentry","category-news","tag-launcher-space","tag-satellite","tag-satellites","tag-starfish-space"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/17283"}],"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=17283"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/17283\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=17283"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=17283"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=17283"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}