{"id":13410,"date":"2019-01-10T19:41:57","date_gmt":"2019-01-10T11:41:57","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/controllers-troubleshoot-problem-with-hubble-camera\/"},"modified":"2019-01-10T19:41:57","modified_gmt":"2019-01-10T11:41:57","slug":"controllers-troubleshoot-problem-with-hubble-camera","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/controllers-troubleshoot-problem-with-hubble-camera\/","title":{"rendered":"Controllers troubleshoot problem with Hubble camera"},"content":{"rendered":"<p><strong>EDITOR\u2019S NOTE: Updated Jan. 11 with correction regarding the field-of-view of the Advanced Camera for Surveys&nbsp;instrument.<\/strong><\/p>\n<figure id=\"attachment_36524\" aria-describedby=\"caption-attachment-36524\" style=\"width: 900px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-36524\" src=\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/s125e012033_1_0.jpg\" alt=\"\" width=\"900\" height=\"598\" srcset=\"https:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/s125e012033_1_0.jpg 900w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/s125e012033_1_0-300x199.jpg 300w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/s125e012033_1_0-768x510.jpg 768w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/s125e012033_1_0-678x450.jpg 678w\" sizes=\"(max-width: 900px) 100vw, 900px\"><figcaption id=\"caption-attachment-36524\" class=\"wp-caption-text\">Astronauts aboard the space shuttle Atlantis took this photo of the Hubble Space Telescope in 2009. Credit: NASA<\/figcaption><\/figure>\n<p>The partial shutdown of the U.S. government could complicate efforts to troubleshoot a suspected hardware problem with the Hubble Space Telescope\u2019s premier science instrument, but officials are optimistic the camera will eventually be restored to operations, the head of the observatory\u2019s science operations team said Wednesday.<\/p>\n<p>Hubble\u2019s Wide Field Camera 3, responsible for nearly half of the observatory\u2019s scientific output, suspended operations Tuesday when on-board software detected a fault \u201csomewhere in the electronics\u201d of one of its two observing channels, said Tom Brown, head of the Hubble Space Telescope mission office at the Space Telescope Science Institute in Baltimore, which oversees the mission\u2019s scientific operations for NASA.<\/p>\n<p>Brown said the problem on Wide Field Camera 3, known as WFC3, is on the instrument\u2019s ultraviolet and visible light channel. The camera also has a heat-sensitive infrared observing channel.<\/p>\n<p>\u201cIt looks like it\u2019s probably some kind of hardware failure on the UVIS (ultraviolet and visible light) side of the instrument, but the instrument has redundancies, and we haven\u2019t tapped into any of those yet in the nearly 10 years it\u2019s been up there,\u201d Brown said Wednesday in a phone interview with Spaceflight Now. \u201cSo right now it\u2019s just a matter of making sure we can isolate where the fault is, and then seeing the right path forward, whether it\u2019s bypassing the fault on the current side of the electronics, or bringing up redundant electronics.\u201d<\/p>\n<p>Astronauts on the space shuttle Atlantis\u2019s STS-125 servicing mission in May 2009 installed Wide Field Camera 3 into Hubble\u2019s science bay. Jointly developed by NASA engineers at the Goddard Space Flight Center, the Space Telescope Science Institute, and Ball Aerospace, the instrument is designed for wide field imaging of stars, galaxies and planets in our own solar system.<\/p>\n<p>The camera was also the instrument that first detected Ultima Thule \u2014 formally named 2014 MU69 \u2014 the distant object in the Kuiper Belt a billion miles beyond Pluto visited by NASA\u2019s New Horizons spacecraft during a speedy encounter New Year\u2019s Day.<\/p>\n<p>Brown is optimistic engineers can bring the camera back online.<\/p>\n<p>\u201cThe instrument is going to be brought back up,\u201d he said. \u201cIt\u2019s just a matter of what\u2019s the right way to bring it back up \u2026 Most of the critical stuff, the electronics and so forth, are redundant, and power supplies and those kinds of things. It\u2019s a matter of going through and isolating where the fault is before you spin up any of those redundancies because you don\u2019t want to do any harm. You want to be sure you understand what the situation is before you bring up any of the spare electronics.\u201d<\/p>\n<p>Thomas Zurbuchen, head of NASA\u2019s science mission directorate, tweeted Wednesday that \u201cissues are bound to happen from time to time\u201d on space missions.<\/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=1082977818286256131&amp;lang=en&amp;origin=https%3A%2F%2Fspaceflightnow.com%2F2019%2F01%2F10%2Fcontrollers-troubleshoot-problem-with-hubble-camera%2F&amp;sessionId=d55a29a24a0c8b507c769fc7651514fc92207103&amp;theme=light&amp;widgetsVersion=6a3ad42b224df%3A1778106238597&amp;width=550px\" data-tweet-id=\"1082977818286256131\"><\/iframe><\/p>\n<blockquote class=\"twitter-tweet\" data-twitter-extracted-i1782699081161697557=\"true\">\n<p dir=\"ltr\" lang=\"en\">This is when everyone gets a reminder about two crucial aspects of space exploration: 1) complex systems like @NASAHubble only work due to a dedicated team of amazing experts; 2) all space systems have finite life-times and such issues are bound to happen from time to time<img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"\ud83e\udd1e\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/17.0.2\/svg\/1f91e.svg\"><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"\ud83d\udef0\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/17.0.2\/svg\/1f6f0.svg\"><img decoding=\"async\" draggable=\"false\" role=\"img\" class=\"emoji\" alt=\"\ud83c\udf0c\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/17.0.2\/svg\/1f30c.svg\"> https:\/\/t.co\/1Bd0NcmVVW<\/p>\n<p>\u2014 Thomas Zurbuchen (@Dr_ThomasZ) January 9, 2019<\/p>\n<\/blockquote>\n<p><script async=\"\" src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p>The funding lapse of most U.S. government agencies, including NASA, has not had a major impact on troubleshooting the camera anomaly so far, Brown said. The ground team responsible for operating Hubble at the Goddard Space Flight Center is still on duty, but NASA employees on the team are working without pay.<\/p>\n<p>But some experts on Wide Field Camera 3 who could help with the investigation could be furloughed.<\/p>\n<p>\u201cObviously, we\u2019d prefer to be in a situation where everyone is available,\u201d Brown said.<\/p>\n<p>\u201cWe\u2019re assembling what we call a tiger team of experts who were involved either in the assembly of the instrument, or the testing of the instrument back 10 years ago, and once we put together that tiger team, I can imagine the shutdown might impact our ability to get all the experts we might want to talk to,\u201d he said. \u201cBut right now, we\u2019re talking to enough folks in industry and at Goddard that we have at least some of the people we want to talk to, and those are the people we\u2019re talking to now.\u201d<\/p>\n<figure id=\"attachment_36525\" aria-describedby=\"caption-attachment-36525\" style=\"width: 1280px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-36525\" src=\"http:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/wfc3_inst-config.jpg\" alt=\"\" width=\"1280\" height=\"813\" srcset=\"https:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/wfc3_inst-config.jpg 1280w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/wfc3_inst-config-300x191.jpg 300w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/wfc3_inst-config-768x488.jpg 768w, https:\/\/spaceflightnow.com\/wp-content\/uploads\/2019\/01\/wfc3_inst-config-678x431.jpg 678w\" sizes=\"(max-width: 1280px) 100vw, 1280px\"><figcaption id=\"caption-attachment-36525\" class=\"wp-caption-text\">This drawing shows the main components of Hubble\u2019s Wide Field Camera 3 (WFC3). The camera was installed during the last space shuttle servicing mission in 2009 and replaced the older Wide Field Planetary Camera 2. Credit: NASA<\/figcaption><\/figure>\n<p>Meanwhile, scientific observations using Hubble\u2019s other three instruments are proceeding.<\/p>\n<p>The Advanced Camera for Surveys, an older camera on Hubble, and the Cosmic Origins Spectrograph and the Space Telescope Imaging Spectrograph are unaffected by the Wide Field Camera 3 problem. All the instruments use light collected through Hubble\u2019s 7.9-foot (2.4-meter) primary mirror, then routed through the telescope to camera and spectrograph detectors.<\/p>\n<p>\u201cIt\u2019s not like we\u2019re going to have any down time in terms of the science program for Hubble,\u201d Brown said. \u201cIt\u2019s just that we\u2019ll put a delay on the scheduling of the Wide Field Camera 3 observations, and press ahead and do the observations on the other instruments earlier than planned. We can do that for quite a long time before we run out of science to do with Hubble. There\u2019s no danger of Hubble running idle right now while we\u2019re troubleshooting.\u201d<\/p>\n<p><em><strong>Hubble\u2019s camera outage comes three months after gyro failure<\/strong><\/em><\/p>\n<p>Nearly 29 years since its launch, and almost 10 years after the fifth and final shuttle servicing flight to repair and upgrade the observatory, the Hubble Space Telescope continues collecting high-quality science data unparalleled by any other space astronomy mission.<\/p>\n<p>But Hubble is showing signs of its age.<\/p>\n<p>Science observations with Hubble were halted for three weeks in October after the failure of one of the spacecraft\u2019s gyroscopes, which control the telescope\u2019s pointing. The gyro failure left Hubble with three of its six gyros still in operation, and when controllers brought up a reserve gyro, the device showed higher rates than normal. Controllers were able to bring the gyro rates to within usable levels, and Hubble resumed observations in late October using three operating gyros.<\/p>\n<p>The observatory can function with a single gyro if needed, but such an operating mode limits Hubble\u2019s observations to certain swaths of the sky.<\/p>\n<p>Astronauts on the last shuttle repair mission in 2009 installed six new gyroscopes to extend Hubble\u2019s operating life. The three gyros still in operations are \u201cenhanced units\u201d with a longer design life, and all three failed units were based on the older design, according to Brown.<\/p>\n<p>\u201cThe three gyros that are left, that we\u2019re operating on right now, are all these enhanced gyros, unlike the ones that have failed to date,\u201d Brown said. \u201cThey\u2019re supposed last time five times longer, approximately, compared to the other style. So we\u2019re expecting to last on the gyros we\u2019re operating on now for a long time.<\/p>\n<p>\u201cThe same goes for the instruments,\u201d he continued. \u201cWide Field Camera 3 and COS (Cosmic Origins Spectrograph) have a bunch of redundant electronics systems in them that have not even been tapped yet in the whole decade they\u2019ve been up there. After you use something for a while, whether it\u2019s in space or in your house, like a light you turn off and on every day, stuff eventually wears out and breaks on it. But that\u2019s why we build these things with redundancies. On Wide Field Camera 3, we haven\u2019t used any of those redundancies yet to date.<\/p>\n<p>\u201cThe fact that we went nearly a decade before we started tapping into them, that\u2019s a good thing in my mind,\u201d he said. \u201cNo one\u2019s happy, going, \u2018Oh, yay, finally one of the parts broke.\u2019 But obviously, at the same time, it\u2019s nice that we went a whole decade before we started tapping into any of the redundant systems on it.\u201d<\/p>\n<p>NASA wants Hubble to continue its mission at least until the launch of the James Webb Space Telescope, an oft-delayed mission now scheduled for liftoff in 2021. Webb will fly with a bigger mirror than Hubble, expanding the vision of astronomers deeper into the cosmos.<\/p>\n<p>\u201cWe still expect to be using (Hubble) until 2025, or maybe even longer, depending on how things go,\u201d Brown said.<\/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>EDITOR\u2019S NOTE: Updated Jan. 11 with correction regarding the field-of-view of the Advanced Camera for Surveys&nbsp;instrument. Astronauts aboard the space shuttle Atlantis took this photo of the Hubble Space Telescope in 2009. Credit: NASA The partial shutdown of the U.S. government could complicate efforts to troubleshoot a suspected hardware problem with the Hubble Space Telescope\u2019s [&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":[2780,1661,1690,1665,1790,898,190,1692],"class_list":["post-13410","post","type-post","status-publish","format-standard","hentry","category-news","tag-aas233","tag-astronomy","tag-astrophysics","tag-ball-aerospace","tag-goddard-space-flight-center","tag-hubble-space-telescope","tag-nasa","tag-space-telescope-science-institute"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/13410"}],"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=13410"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/13410\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=13410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=13410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=13410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}