{"id":117,"date":"2001-05-08T12:48:25","date_gmt":"2001-05-08T12:48:25","guid":{"rendered":"https:\/\/satelit.cz\/?p=117"},"modified":"2001-05-08T12:48:25","modified_gmt":"2001-05-08T12:48:25","slug":"aktualni-informace-o-stavu-ao-40","status":"publish","type":"post","link":"https:\/\/satelit.cz\/?p=117","title":{"rendered":"Aktu\u00e1ln\u00ed informace o stavu AO-40"},"content":{"rendered":"

Na X. Mikrovlnn\u00e9m setk\u00e1n\u00ed n\u00e1s Mirek OK2AQK sezn\u00e1mil s aktu\u00e1ln\u00edm stavem chlouby sv\u011btov\u00e9ho satelitn\u00edho radioamat\u00e9rstv\u00ed, s dru\u017eic\u00ed AO-40. Jak se odhaduje pr\u016fb\u011bh cel\u00e9 ud\u00e1losti v prosinci lo\u0148sk\u00e9ho roku a v jak\u00e9m stavu je dru\u017eice nyn\u00ed to jsou n\u00e1m\u011bty pro dne\u0161n\u00ed \u010dl\u00e1nek.
\nV sobotu dopoledne prob\u011bhla na X. Mikrovlnn\u00e9m setk\u00e1n\u00ed p\u0159edn\u00e1\u0161ka o nejnov\u011bj\u0161\u00ed, ji\u017e p\u0159ev\u00e1\u017en\u011b mikrovlnn\u00e9, dru\u017eici AO-40. Dotazy byly sm\u011b\u0159ov\u00e1ny na probl\u00e9my, kter\u00e9 vznikly koncem lo\u0148sk\u00e9ho roku, kdy se dru\u017eice na n\u011bkolik dn\u016f odml\u010dela. Cel\u00e1 situace za\u010dala p\u0159i 51. obletu dru\u017eice kolem Zem\u011b, kdy do\u0161lo k za\u017eehnut\u00ed <\/a> 400N motoru. Podle m\u011b\u0159en\u00ed se zjistilo, \u017ee dru\u017eice se nach\u00e1z\u00ed d\u00e1le, ne\u017e by odpov\u00eddalo spr\u00e1vn\u00e9 d\u00e9lce z\u00e1\u017eehu. Proto byly provedeny dal\u0161\u00ed testy, ze kter\u00fdch vyplynulo, \u017ee nedov\u00edr\u00e1 ventil na hlavn\u00edm motoru. Ihned do\u0161lo ke kontaktov\u00e1n\u00ed v\u00fdrobce, kter\u00fd celou situaci nasimuloval ve sv\u00fdch laborato\u0159\u00edch a AMSATu bylo doporu\u010deno ventil motoru rychle za sebou 200-kr\u00e1t zav\u0159\u00edt a otev\u0159\u00edt. Bohu\u017eel p\u0159ibli\u017en\u011b p\u0159i 130-t\u00e9m otev\u0159en\u00ed ventilu se dru\u017eice odml\u010dela. Samoz\u0159ejm\u011b ihned nastal poprask v cel\u00e9m t\u00fdm\u016f a za\u010dala stresuj\u00edc\u00ed pr\u00e1ce na zji\u0161t\u011bn\u00ed stavu dru\u017eice. Z po\u010d\u00e1tku to vypadalo na v\u00fdbuch dru\u017eice, kter\u00fd se na\u0161t\u011bst\u00ed pomoc\u00ed radar\u016f organizace NORAD nepotvrdil. Dru\u017eice nyn\u00ed \u010dekala na tzv. Command Assist m\u00f3d ve kter\u00e9m se sna\u017e\u00ed nav\u00e1zat spojen\u00ed s \u0159\u00edd\u00edc\u00edm centrem pomoc\u00ed jak\u00e9hokoliv dostupn\u00e9ho komunika\u010dn\u00edho kan\u00e1lu. To se nakonec poda\u0159ilo 25. prosince lo\u0148sk\u00e9ho roku. B\u011bhem pokus\u016f o znovuobnoven\u00ed spojen\u00ed s dru\u017eic\u00ed se samoz\u0159ejm\u011b za\u010dalo zji\u0161\u0165ovat k \u010demu mohlo na dru\u017eici vlastn\u011b doj\u00edt. Podle v\u00fdpo\u010dt\u016f Mirka OK2AQK do\u0161lo k prasknut\u00ed p\u0159\u00edvodn\u00edho potrub\u00ed do ventilu, kter\u00e9 nevydr\u017eelo to obrovsk\u00e9 nam\u00e1h\u00e1n\u00ed. Vznikl\u00fdm otvorem za\u010dalo do vesm\u00edru unikat zbyl\u00e9 vysoce toxick\u00e9 palivo a cestou utrhlo v\u0161esm\u011brov\u00e9 ant\u00e9ny a po\u0161kodilo nav\u00e1d\u011bc\u00ed kameru. \u00danikem paliva samoz\u0159ejm\u011b tak\u00e9 do\u0161lo ke zm\u011bn\u011b pl\u00e1novan\u00e9 ob\u011b\u017en\u00e9 dr\u00e1hy a proto se dru\u017eice nach\u00e1z\u00ed mimo p\u016fvodn\u011b pl\u00e1novanou dr\u00e1hu.
\n
Dru\u017eice se nyn\u00ed nach\u00e1z\u00ed na stabiln\u00ed orbit\u00e1ln\u00ed dr\u00e1ze a ke zm\u011bn\u011b polohy m\u016f\u017ee pou\u017e\u00edt pouze magnetick\u00fd syst\u00e9m, nebo palubn\u00ed motor ArcJet, kter\u00fd m\u00e1 paliva p\u0159ibli\u017en\u011b na 100 hodin provozu. P\u0159esto m\u011b Mirek, \u017ee dr\u00e1ha bude stabiln\u00ed nejm\u00e9n\u011b po dobu minim\u00e1ln\u011b des\u00edtek let.
\n Nejnov\u011bj\u0161\u00ed informac\u00ed je to, \u017ee 5. kv\u011btna byla dru\u017eice uvedena do prvn\u00edho zku\u0161ebn\u00edho provozu, kdy byla propojena matice z p\u00e1sem L a U na v\u00fdstup v p\u00e1smu S. Bylo nav\u00e1z\u00e1no n\u011bkolik des\u00edtek spojen\u00ed a v\u0161echno prob\u00edh\u00e1 podle pl\u00e1nu. Bohu\u017eel prozat\u00edm nen\u00ed v provozu syst\u00e9m LEILA, kter\u00fd by m\u011bl chr\u00e1nit vstup transpond\u00e9ru, p\u0159ed extr\u00e9mn\u011b siln\u00fdmi stanicemi, kter\u00e9 by zav\u00edrali AGC. Dokonce do\u0161lo k nav\u00e1z\u00e1n\u00ed spojen\u00ed s pomoc\u00ed 25W EIRP p\u0159i uplinku na 70cm p\u00e1smu, co\u017e nazna\u010duje \u0161irok\u00e9 mo\u017enosti vyu\u017eit\u00ed t\u00e9to dru\u017eice. J\u00e1 osobn\u011b m\u00e1m bohu\u017eel p\u0159ij\u00edma\u010d na 13cm rozd\u011blan\u00fd na stole a i kdy\u017e je ji\u017e schopen provozu, nen\u00ed to je\u0161t\u011b ono. P\u0159esto se brzy t\u011b\u0161\u00edm na spojen\u00ed prost\u0159ednictv\u00ed AO-40.<\/p>\n","protected":false},"excerpt":{"rendered":"

Na X. Mikrovlnn\u00e9m setk\u00e1n\u00ed n\u00e1s Mirek OK2AQK sezn\u00e1mil s aktu\u00e1ln\u00edm stavem chlouby sv\u011btov\u00e9ho satelitn\u00edho radioamat\u00e9rstv\u00ed, s dru\u017eic\u00ed AO-40. Jak se odhaduje pr\u016fb\u011bh cel\u00e9 ud\u00e1losti v prosinci lo\u0148sk\u00e9ho roku a v jak\u00e9m stavu je dru\u017eice nyn\u00ed to jsou n\u00e1m\u011bty pro dne\u0161n\u00ed \u010dl\u00e1nek. V sobotu dopoledne prob\u011bhla na X. Mikrovlnn\u00e9m setk\u00e1n\u00ed p\u0159edn\u00e1\u0161ka o nejnov\u011bj\u0161\u00ed, ji\u017e p\u0159ev\u00e1\u017en\u011b mikrovlnn\u00e9,…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-117","post","type-post","status-publish","format-standard","hentry","category-radioamateri"],"_links":{"self":[{"href":"https:\/\/satelit.cz\/index.php?rest_route=\/wp\/v2\/posts\/117","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/satelit.cz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/satelit.cz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/satelit.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/satelit.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=117"}],"version-history":[{"count":0,"href":"https:\/\/satelit.cz\/index.php?rest_route=\/wp\/v2\/posts\/117\/revisions"}],"wp:attachment":[{"href":"https:\/\/satelit.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/satelit.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/satelit.cz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}