{"id":1286,"date":"2023-04-26T22:21:02","date_gmt":"2023-04-26T13:21:02","guid":{"rendered":"https:\/\/control.kau.ac.kr\/?page_id=1286"},"modified":"2023-04-26T23:07:49","modified_gmt":"2023-04-26T14:07:49","slug":"cubesat-development","status":"publish","type":"page","link":"https:\/\/control.kau.ac.kr\/?page_id=1286","title":{"rendered":"CubeSat Development"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Objective<\/h2>\n\n\n\n<p>Develop the 2U CubeSat, VisionCube<\/p>\n\n\n\n<p><strong>Primary mission<\/strong><br>Observation of the transient luminous events, a.k.a. MegaLightning from the low Earth orbit<br>  &#8211; Detect the event using a MaPMT (Multi-anode Photo Multiplier Tube) detector<br>  &#8211; Reorient the CubeSat and acquire the TLE images<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/Mission_description.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"695\" height=\"608\" src=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/Mission_description.jpg\" alt=\"\" class=\"wp-image-1295\"\/><\/a><figcaption class=\"wp-element-caption\">Primary mission of the CubeSat VisionCube<\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>System Configuration<\/strong><\/p>\n\n\n\n<p>Payload system (PS)<br>Attitude Determination and Control system (ADCS)<br>Electrical Power system (EPS)<br>Command and Data Handling system (CDHS)<br>Communication system (CS)<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/VisionCubeSystem.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"743\" height=\"758\" src=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/VisionCubeSystem.jpg\" alt=\"\" class=\"wp-image-1296\"\/><\/a><figcaption class=\"wp-element-caption\">2U CubeSat VisionCube System<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/VisionCubeInterfaceDiagram.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"549\" height=\"435\" src=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/VisionCubeInterfaceDiagram.jpg\" alt=\"\" class=\"wp-image-1300\"\/><\/a><figcaption class=\"wp-element-caption\">2U CubeSat VisionCube System interface diagram<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/VisionCubeSpec.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1455\" height=\"2003\" src=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/VisionCubeSpec.jpg\" alt=\"\" class=\"wp-image-1297\"\/><\/a><figcaption class=\"wp-element-caption\">VisionCube Specification<\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>Payload system (PS)<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/payload_systemarchitecture.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"501\" height=\"264\" src=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/payload_systemarchitecture.jpg\" alt=\"\" class=\"wp-image-1301\"\/><\/a><figcaption class=\"wp-element-caption\">Payload system architecture<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/payload_hardware.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"279\" height=\"264\" src=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/payload_hardware.jpg\" alt=\"\" class=\"wp-image-1302\"\/><\/a><figcaption class=\"wp-element-caption\">Developed Payload hardware (Right: MaPMT with Pinhole lens, Left: CMOS imager with fixed-focus lens)<\/figcaption><\/figure>\n<\/div>\n\n\n<p><strong>Ground test<\/strong><\/p>\n\n\n\n<p>To evaluate the performance of the TLE observation system, ground experiments have been performed. To do this,  virtual TLE sources using UV LEDs with various wavelengths, attached to the wall inside of dark box with 3&#215;3 array configuration, are employed.<\/p>\n\n\n\n<p>Adjusted small power to mimic the weak intensity of the TLE occurence, the LEDs flashes randomly with the short duration (~5msec) and the TLE observation system should detect the LED and take images over the Region of interest where the TLE event occurs.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/TLE_obersevationsystem.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/TLE_obersevationsystem.jpg\" alt=\"\" class=\"wp-image-1303\" width=\"504\" height=\"273\"\/><\/a><figcaption class=\"wp-element-caption\">TLE Observation System Ground Test Setup<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/TLEpulse.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"874\" height=\"289\" src=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/TLEpulse.jpg\" alt=\"\" class=\"wp-image-1304\"\/><\/a><figcaption class=\"wp-element-caption\">Detection of the imitated TLE events from the MaPMT sensor (Latency is about 664usec)<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/TLE_images.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1529\" height=\"406\" src=\"https:\/\/control.kau.ac.kr\/wp-content\/uploads\/2023\/04\/TLE_images.jpg\" alt=\"\" class=\"wp-image-1305\"\/><\/a><figcaption class=\"wp-element-caption\">Images from the CMOS imager after detection of the TLE pulses<\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Objective Develop the 2U CubeSat, VisionCube Primary missionObservation of the transient luminous events, a.k.a. MegaLightning from the low Earth orbit &#8211; Detect the event using a MaPMT (Multi-anode Photo Multiplier Tube) detector &#8211; Reorient the CubeSat and acquire the TLE images System Configuration Payload system (PS)Attitude Determination and Control system (ADCS)Electrical Power system (EPS)Command and &hellip; <a href=\"https:\/\/control.kau.ac.kr\/?page_id=1286\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">CubeSat Development<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":11,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-1286","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/control.kau.ac.kr\/index.php?rest_route=\/wp\/v2\/pages\/1286","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/control.kau.ac.kr\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/control.kau.ac.kr\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/control.kau.ac.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/control.kau.ac.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1286"}],"version-history":[{"count":4,"href":"https:\/\/control.kau.ac.kr\/index.php?rest_route=\/wp\/v2\/pages\/1286\/revisions"}],"predecessor-version":[{"id":1308,"href":"https:\/\/control.kau.ac.kr\/index.php?rest_route=\/wp\/v2\/pages\/1286\/revisions\/1308"}],"up":[{"embeddable":true,"href":"https:\/\/control.kau.ac.kr\/index.php?rest_route=\/wp\/v2\/pages\/11"}],"wp:attachment":[{"href":"https:\/\/control.kau.ac.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}