{"id":791325,"date":"2024-11-20T10:21:00","date_gmt":"2024-11-20T15:21:00","guid":{"rendered":"http:\/\/spaceweekly.com\/?p=791325"},"modified":"2024-11-20T10:21:00","modified_gmt":"2024-11-20T15:21:00","slug":"how-scientists-repurposed-a-camera-on-esas-mars-express-mission","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=791325","title":{"rendered":"How Scientists Repurposed a Camera on ESA&#8217;s Mars Express Mission"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n<p><em>A camera aboard the Mars Express orbiter finds a new lease on life.<\/em><\/p>\n<p>Sometimes, limitations can lead to innovation. A recent paper highlights how researchers are utilizing the VMC (Visual Monitoring Camera) aboard the European Space Agency\u2019s (ESA) venerable Mars Express orbiter.<\/p>\n<p>The work is a collaboration between the European Space Agency (ESA), the IAA-CSIC Institute of Astrophysics in Andalusia Spain, the Institute of Astrophysics and Space Sciences in Lisbon Portugal and the Hawai\u2019i Institute of Geophysics and Planetology at the University of Hawai\u2019i.<\/p>\n<p><span id=\"more-169092\"\/><\/p>\n<h2 class=\"wp-block-heading\" id=\"h-a-mars-webcam\">A Mars Webcam<\/h2>\n<p>Mars Express is ESA\u2019s first Mars mission. Launched on a Soyuz rocket, Mars Express arrived in orbit around the Red Planet on Christmas Day 2003. The VMC was designed for one primary purpose: to monitor the departure of the ill-fated Beagle 2 lander, which was released from Mars Express on December 19<sup>th<\/sup>, just under a week prior to orbital insertion. The camera was switched off after the Beagle 2 release was complete, then brought back online in 2007.<\/p>\n<figure class=\"wp-block-image size-full\"><figcaption class=\"wp-element-caption\">One of the final images of Beagle 2, taken by VMC shortly after separation. Credit: ESA\/Mars Express<\/figcaption><\/figure>\n<p>\u201c(The) VMC camera was originally intended to take only a few snapshots of the lander release,\u201d Alejandro Cardes\u00edn-Moinelo (ESA Mars Express Science Operations) told <em>Universe Today<\/em>. \u201cThe camera was then \u2018forgotten\u2019 for a few years until it was switched on again in 2007 as an engineering test. This showed a great value for public outreach and so it started to be operated regularly. In recent years, VMC images started getting more and more popular and raised the attention of the community due to its scientific potential.\u201d<\/p>\n<p><iframe loading=\"lazy\" title=\"Cam Aboard Mars Express Shows Orbital Plunge | Video\" width=\"1110\" height=\"624\" src=\"https:\/\/www.youtube.com\/embed\/8_0BP9t-U6c?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><\/p>\n<h2 class=\"wp-block-heading\" id=\"h-a-unique-orbit\">A Unique Orbit<\/h2>\n<p>The VMC was initially only tasked with taking supplementary images of Mars. A 2016 collaboration saw a push to upgrade the camera for scientific use. In 2018, it found a role monitoring the Martian weather. Mars Express is in a nearly polar orbit. Its distant 11,560 kilometer apoapsis vantage point along its 7.5 hour orbit is ideal for full disk observations.<\/p>\n<p>The small VMC camera has a 40 by 30 degree wide field of view. This means it monitor full disk weather on Mars. Mars Express also offers the key advantage of a more flexible orbit versus other missions. The mission sees regions at different times and at illuminations.<\/p>\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"265\" src=\"https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/IRIS-1_IC_system_used_in_the_Visual_Monitoring_Camera_article.jpg\" alt=\"IRIS-IC\" class=\"wp-image-169710\" srcset=\"https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/IRIS-1_IC_system_used_in_the_Visual_Monitoring_Camera_article.jpg 400w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/IRIS-1_IC_system_used_in_the_Visual_Monitoring_Camera_article-250x166.jpg 250w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\"\/><figcaption class=\"wp-element-caption\">IRIS-1 IC camera at the heart of VMC. Credit: ESA<\/figcaption><\/figure>\n<h2 class=\"wp-block-heading\" id=\"h-mars-express-as-a-weather-satellite\">Mars Express as a Weather Satellite<\/h2>\n<p>\u201cVMC has proven to be a great asset in the global monitoring of the Martian atmosphere, complementing all other scientific instruments and providing very useful information on meteorological phenomena, mostly atmospheric aerosols, ice clouds and dust storms\u201d says Cardes\u00edn-Moinelo. \u201cAmong the many scientific contributions, the main discovery was the striking Arsia Mons \u2018elongated cloud\u2019 spotted in 2018, a 1,500 kilometer cloud which had not been reported by any previous mission.\u201d<\/p>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/Return_of_the_extremely_elongated_cloud_on_Mars-1024x576.jpg\" alt=\"Cloud\" class=\"wp-image-169711\" srcset=\"https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/Return_of_the_extremely_elongated_cloud_on_Mars-1024x576.jpg 1024w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/Return_of_the_extremely_elongated_cloud_on_Mars-580x326.jpg 580w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/Return_of_the_extremely_elongated_cloud_on_Mars-250x141.jpg 250w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/Return_of_the_extremely_elongated_cloud_on_Mars-768x432.jpg 768w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/Return_of_the_extremely_elongated_cloud_on_Mars-1536x864.jpg 1536w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/Return_of_the_extremely_elongated_cloud_on_Mars.jpg 1920w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\"\/><figcaption class=\"wp-element-caption\">Evolution of the cloud seen over Arsia Mons. Credit: ESA\/Mars Express.   <\/figcaption><\/figure>\n<p>The imaging workflow for VMC uses bias, flat and dark frames, not unlike what amateur astrophotographers use to process images. VMC is similar to old turn-of-the-century webcams, and produces small images that are easy to transmit back to Earth.<\/p>\n<p>This also allows the VMC to carry out serious science. The instrument is calibrated for full disk photometry, useful for tracking weather and changes on Mars. Though VMC has a limited dynamic range, running a variety of exposures allows for the HDR (High Dynamic Range) imaging needed to reveal elusive features. Smartphone cameras use this sort of \u2018hack\u2019 to tease out detail.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-evolution-of-a-mars-camera\">Evolution of a Mars Camera<\/h2>\n<p>\u201cVMC is similar to a \u2018cheap\u2019 standard cell-phone camera of the early 2000s, with less than 0.2 megapixels,\u201d says Cardes\u00edn-Moinelo. \u201cThis cannot provide a huge level of detail, but is located in an \u2018extraordinary place,\u2019 flying around Mars. This allows us to retrieve tens of images of the full disk of Mars every day so we can monitor the atmospheric clouds and dust storms, which we could not do with any other instrument. This kind of \u2018cheap\u2019 wide camera has proven very useful, so we are now pushing to fly an up-to-date camera in future missions, with more resolution and better performance to improve the global monitoring of the planet.\u201d<\/p>\n<p>But VMC had other issues to overcome as well in order to provide crucial science data. First, Mars Express\u2019s internal clock isn\u2019t entirely accurate. Plus, engineers fixed VMC on the chassis of the spacecraft. This means it points where Mars Express points during operations. In addition to using star field shots to get a fix on the spacecraft\u2019s position, the team uses transits of the moons Phobos and Deimos across the disk of Mars as a clock to calibrate images and verify timestamps.<\/p>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"771\" src=\"https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/VNC-1024x771.jpg\" alt=\"VMC images\" class=\"wp-image-169712\" srcset=\"https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/VNC-1024x771.jpg 1024w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/VNC-580x436.jpg 580w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/VNC-250x188.jpg 250w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/VNC-768x578.jpg 768w, https:\/\/www.universetoday.com\/wp-content\/uploads\/2024\/11\/VNC.jpg 1200w\" sizes=\"auto, (max-width: 767px) 89vw, (max-width: 1000px) 54vw, (max-width: 1071px) 543px, 580px\"\/><figcaption class=\"wp-element-caption\">A montage of VMC images. Credit: ESA. <\/figcaption><\/figure>\n<p>VMC isn\u2019t alone in monitoring Martian weather. The United Arab Emirates\u2019 Mars Hope also does full disk imaging and can help see what\u2019s currently going on. These opposing view points are handy to have as dust storm season evolves. Other instruments such as JunoCam aboard NASA\u2019s Juno mission in orbit around Jupiter are designed solely around a similar sort of public collaboration.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-small-cameras-for-small-missions\">Small Cameras for Small Missions<\/h2>\n<p>Finally, these sorts of basic off-the-shelf cameras are becoming standard equipment on smallsats. Examples in planetary science include the Mars Cube One MarCO-A and B cubesats which hitched a ride with NASA\u2019s Mars Insight lander which flew past Mars in 2018, the Minerva-II landers aboard the Hayabusa 2 asteroid mission, and the Italian Space Agency\u2019s LICIACube mission which witnessed the DART impact into asteroid Dimorphos in 2022.<\/p>\n<p>Certainly, this is a game-changer for Martian weather predictions. It\u2019s fascinating to see the unique images of Mars provided by VMC, as a demonstration of how old hardware in space can find a new purpose.<\/p>\n<div class=\"sharedaddy sd-block sd-like jetpack-likes-widget-wrapper jetpack-likes-widget-unloaded\" id=\"like-post-wrapper-24000880-169092-673dfcadaec33\" data-src=\"https:\/\/widgets.wp.com\/likes\/?ver=14.0#blog_id=24000880&amp;post_id=169092&amp;origin=www.universetoday.com&amp;obj_id=24000880-169092-673dfcadaec33&amp;n=1\" data-name=\"like-post-frame-24000880-169092-673dfcadaec33\" data-title=\"Like or Reblog\">\n<h3 class=\"sd-title\">Like this:<\/h3>\n<p><span class=\"button\"><span>Like<\/span><\/span> <span class=\"loading\">Loading&#8230;<\/span><\/p>\n<p><span class=\"sd-text-color\"\/><\/div>\n<\/p><\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/www.universetoday.com\/169092\/how-scientists-repurposed-a-camera-on-esas-mars-express-mission\/?rand=772204\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A camera aboard the Mars Express orbiter finds a new lease on life. Sometimes, limitations can lead to innovation. A recent paper highlights how researchers are utilizing the VMC (Visual&hellip; <\/p>\n","protected":false},"author":1,"featured_media":791326,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-791325","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-genaero"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/791325","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=791325"}],"version-history":[{"count":0,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/791325\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/791326"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=791325"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=791325"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=791325"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}