{"id":13895,"date":"2019-08-26T07:05:03","date_gmt":"2019-08-26T07:05:03","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=13895"},"modified":"2019-08-26T07:05:03","modified_gmt":"2019-08-26T07:05:03","slug":"amateur-astronomer-discovers-long-lost-nasa-image-satellite","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/cs\/science\/astronomy\/amateur-astronomer-discovers-long-lost-nasa-image-satellite\/","title":{"rendered":"Amat\u00e9rsk\u00fd astronom objevil ztracen\u00fd satelit NASA IMAGE po v\u00edce ne\u017e deseti letech"},"content":{"rendered":"

Amat\u00e9rsk\u00fd astronom objevil d\u00e1vno ztracen\u00fd satelit NASA<\/h2>\n\n

V pozoruhodn\u00e9m zvratu ud\u00e1lost\u00ed amat\u00e9rsk\u00fd astronom narazil na d\u00e1vno ztracen\u00fd satelit NASA, kter\u00fd byl nezv\u011bstn\u00fd v\u00edce ne\u017e deset let. Satelit zn\u00e1m\u00fd jako IMAGE (Imager for Magnetopause-to-Aurora Global Exploration) byl p\u016fvodn\u011b vypu\u0161t\u011bn v roce 2000, aby studoval interakci mezi slune\u010dn\u00edm v\u011btrem a zemskou magnetosf\u00e9rou. IMAGE v\u0161ak v roce 2005 ztichl a NASA jej ofici\u00e1ln\u011b prohl\u00e1sila za ztracen\u00fd.<\/p>\n\n

Scott\u016fv objev Tilley<\/h2>\n\n

Amat\u00e9rsk\u00fdm astronomem, kter\u00fd stoj\u00ed za op\u011btovn\u00fdm objeven\u00edm IMAGE, je Scott Tilley, radioastronom se z\u00e1jmem o \u0161pion\u00e1\u017en\u00ed dru\u017eice. P\u0159i hled\u00e1n\u00ed tajn\u00e9ho satelitu Zuma, kter\u00fd ned\u00e1vno zmizel, Tilley zachytil sign\u00e1l ze satelitu 2000-017A, 26113 \u2013 volac\u00ed znak pro IMAGE. Tilley ozn\u00e1mil sv\u00e9 objevy na sv\u00e9m blogu Riddles In the Sky 21. ledna 2023.<\/p>\n\n

Nad\u011bje NASA pro IMAGE<\/h2>\n\n

V\u011bdci z NASA byli nad\u0161en\u00ed, kdy\u017e se dozv\u011bd\u011bli o Tilleyho objevu, a nyn\u00ed doufaj\u00ed, \u017ee se jim poda\u0159\u00ed obnovit kontakt s IMAGE a mo\u017en\u00e1 jej dokonce o\u017eivit. Satelit nese jedine\u010dn\u00e9 p\u0159\u00edstroje, kter\u00e9 mohou poskytnout cenn\u00e9 \u00fadaje o slune\u010dn\u00edm v\u011btru a jeho vlivu na zemskou magnetosf\u00e9ru. Tyto informace jsou kl\u00ed\u010dov\u00e9 pro pochopen\u00ed a p\u0159edpov\u00edd\u00e1n\u00ed kosmick\u00e9ho po\u010das\u00ed, kter\u00e9 m\u016f\u017ee naru\u0161it komunika\u010dn\u00ed syst\u00e9my, elektrickou s\u00ed\u0165 a dal\u0161\u00ed infrastrukturu.<\/p>\n\n

V\u00fdznam sledov\u00e1n\u00ed satelit\u016f<\/h2>\n\n

Tilleyho objev zd\u016fraz\u0148uje d\u016fle\u017eitou roli, kterou hraj\u00ed amat\u00e9r\u0161t\u00ed sledovatel\u00e9 satelit\u016f v pr\u016fzkumu vesm\u00edru. Monitorov\u00e1n\u00edm satelitn\u00edch sign\u00e1l\u016f a sd\u00edlen\u00edm sv\u00fdch dat mohou tito nad\u0161enci pomoci NASA a dal\u0161\u00edm kosmick\u00fdm agentur\u00e1m lokalizovat ztracen\u00e9 satelity, sledovat aktivn\u00ed mise a identifikovat potenci\u00e1ln\u00ed hrozby.<\/p>\n\n

V\u00fdzvy obnovy satelit\u016f<\/h2>\n\n

O\u017eiven\u00ed ztracen\u00e9ho satelitu nen\u00ed snadn\u00fd \u00fakol. IMAGE je mimo provoz v\u00edce ne\u017e 15 let a jeho syst\u00e9my mohly b\u00fdt v\u00fdrazn\u011b degradov\u00e1ny. In\u017een\u00fd\u0159i NASA budou muset pe\u010dliv\u011b posoudit stav dru\u017eice a ur\u010dit, zda je provediteln\u00e9 obnovit jeho funk\u010dnost.<\/p>\n\n

V\u00fdpadek nap\u00e1jen\u00ed a porucha transpond\u00e9ru<\/h2>\n\n

P\u016fvodn\u00ed z\u00e1vada, kter\u00e1 zp\u016fsobila, \u017ee IMAGE ztichl, byl vypnut\u00fd regul\u00e1tor v\u00fdkonu v pevn\u00e9m stavu, kter\u00fd nap\u00e1j\u00ed transpond\u00e9r pou\u017e\u00edvan\u00fd ke komunikaci se zemn\u00ed kontrolou. To v podstat\u011b sp\u00e1lilo pojistku a zabr\u00e1nilo transpond\u00e9ru v op\u011btovn\u00e9m zapnut\u00ed.<\/p>\n\n

Obdob\u00ed zatm\u011bn\u00ed a restart satelit\u016f<\/h2>\n\n

Dru\u017eice mohou b\u011bhem obdob\u00ed zatm\u011bn\u00ed vstoupit do re\u017eimu hibernace, kdy proch\u00e1zej\u00ed zemsk\u00fdm st\u00ednem a jejich baterie nap\u00e1jen\u00e9 sol\u00e1rn\u00ed energi\u00ed se vybij\u00ed. Po opu\u0161t\u011bn\u00ed obdob\u00ed zatm\u011bn\u00ed se dru\u017eice obvykle restartuj\u00ed. NASA doufala, \u017ee restart b\u011bhem jednoho z t\u011bchto obdob\u00ed zatm\u011bn\u00ed obnov\u00ed nap\u00e1jen\u00ed transpond\u00e9ru IMAGE, ale tento pokus nebyl \u00fasp\u011b\u0161n\u00fd.<\/p>\n\n

Historick\u00e1 obnova satelit\u016f NASA<\/h2>\n\n

Nejedn\u00e1 se o prvn\u00ed p\u0159\u00edpad, kdy se NASA poda\u0159ilo obnovit d\u00e1vno ztracen\u00fd satelit. V roce 2016 agentura obnovila kontakt s kosmickou lod\u00ed Solar and Terrestrial Relations Observatory: STEREO-B, kter\u00e1 byla nezv\u011bstn\u00e1 t\u00e9m\u011b\u0159 dva roky. STEREO-B bylo nakonec znovu ztraceno, ale jeho obnova uk\u00e1zala, \u017ee je mo\u017en\u00e9 o\u017eivit i zd\u00e1nliv\u011b ztracen\u00e9 satelity.<\/p>\n\n

Budoucnost IMAGE<\/h2>\n\n

NASA je opatrn\u011b optimistick\u00e1 ohledn\u011b mo\u017enosti vr\u00e1tit IMAGE do pln\u00e9ho provozu. Unik\u00e1tn\u00ed schopnosti dru\u017eice by mohly poskytnout neoceniteln\u00fd vhled do dynamiky zemsk\u00e9 magnetosf\u00e9ry a zlep\u0161it na\u0161i schopnost p\u0159edpov\u00eddat kosmick\u00e9 po\u010das\u00ed. In\u017een\u00fd\u0159i v sou\u010dasn\u00e9 dob\u011b pracuj\u00ed na obnoven\u00ed komunikace s IMAGE a vyhodnocen\u00ed jeho stavu. Pokud budou \u00fasp\u011b\u0161n\u00ed, bude obnova IMAGE velk\u00fdm v\u00edt\u011bzstv\u00edm pro NASA a d\u016fkazem odhodl\u00e1n\u00ed a d\u016fvtipu profesion\u00e1ln\u00edch i amat\u00e9rsk\u00fdch astronom\u016f.<\/p>","protected":false},"excerpt":{"rendered":"

Amat\u00e9rsk\u00fd astronom objevil d\u00e1vno ztracen\u00fd satelit NASA V pozoruhodn\u00e9m zvratu ud\u00e1lost\u00ed amat\u00e9rsk\u00fd astronom narazil na d\u00e1vno ztracen\u00fd satelit NASA, kter\u00fd byl nezv\u011bstn\u00fd v\u00edce ne\u017e deset let. Satelit zn\u00e1m\u00fd jako IMAGE…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[437],"tags":[18709,435,6870,473,434,18710,18711,16086,572],"class_list":["post-13895","post","type-post","status-publish","format-standard","hentry","category-astronomy","tag-amateur-astronomy","tag-astronomy","tag-space-weather","tag-nasa","tag-space-exploration","tag-image-satellite","tag-satellite-recovery","tag-solar-wind","tag-earth-science"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13895","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/comments?post=13895"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13895\/revisions"}],"predecessor-version":[{"id":13896,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/posts\/13895\/revisions\/13896"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/media?parent=13895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/categories?post=13895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/cs\/wp-json\/wp\/v2\/tags?post=13895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}