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Discoverer 1 fu il primo di una serie di s … Discoverer 1 fu il primo di una serie di satelliti artificiali che facevano parte del programma Corona, organizzato dal DARPA e dall'United States Air Force. Fu il primo prototipo del satellite da ricognizione KH-1, ma non aveva a bordo fotocamera né pellicola fotografica. Il satellite pesava 618 kg e fu lanciato il 28 febbraio 1959 con un razzo vettore Thor-Agena dalla Vandenberg Air Force Base. Il Discoverer 1 fu il primo satellite lanciato in orbita polare.primo satellite lanciato in orbita polare.
, Діскаверер-1 — американський прототип розвідувального супутника серії KH-1, що запускались за програмою Корона. Перша спроба запуску на полярну орбіту. Перший запуск космічного апарата з бази Ванденберг. Перший запуск ракети-носія .
, Discoverer 1 – amerykański satelita techno … Discoverer 1 – amerykański satelita technologiczny. Stanowił część tajnego . Discoverer 1 był pierwszym w historii satelitą, który osiągnął orbitę polarną. Satelitę skonstruowała firma Lockheed. Statek był zaadaptowanym członem rakietowym Agena A. Przystosowano go do przenoszenia systemu fotograficznego i kapsuły powrotnej (Discoverer 1 nie posiadał obu tych systemów), poprzez doczepienie do szczytu członu stożkowej obudowy. Znajdowało się tam 18 kg wyposażenia służącego do łączności i przesyłania telemetrii. W skład aparatury wchodziły: wysokoczęstotliwościowy nadajnik radiowy małej mocy (do namierzania statku z Ziemi) i radionadajnik radarowy przyjmujący komendy i umożliwiający dalekosiężne namierzanie radarowe statku. Piętnaście kanałów telemetrii (10 ciągłych i 5 komutowanych) było używanych do przesyłania informacji o prawie 100 aspektach pracy statku.macji o prawie 100 aspektach pracy statku.
, Дискаверер-1 (англ. Discoverer 1) — америк … Дискаверер-1 (англ. Discoverer 1) — американский космический аппарат. Прототип разведывательных спутников серии KH-1, запускавшихся по программе CORONA. Первый запуск с базы ВВС США Ванденберг в Калифорнии и первый запуск с использованием ракеты-носителя Тор-Аджена.использованием ракеты-носителя Тор-Аджена.
, ディスカバラー1号（Discoverer 1）はアメリカ合衆国の人工衛星。コロナ偵察 … ディスカバラー1号（Discoverer 1）はアメリカ合衆国の人工衛星。コロナ偵察衛星計画における最初の衛星で、1959年2月28日1時49分（PST）にカリフォルニア州のヴァンデンバーグ空軍基地からソー・アジェナロケットによって打ち上げられた。 コロナ計画の偵察衛星であるKHシリーズ（Key Hole、鍵穴の意）の最初のタイプである、KH-1型のプロトタイプであったが、カメラやフィルムカプセルはどちらも搭載していなかった。 ディスカバラー1号は南極に向けて打ち上げられ、極軌道に投入しようとされた最初の人工衛星であるが、成功しなかった。後に機密解除となった中央情報局(CIA)の報告書では「今日ではほとんどの人間が、ディスカバラー1号は南極近くの何処かに落下したと信じている」と断定されていた。間が、ディスカバラー1号は南極近くの何処かに落下したと信じている」と断定されていた。
, Discoverer 1 was the first of a series of … Discoverer 1 was the first of a series of satellites which were part of the CORONA reconnaissance satellite program. It was launched on a Thor-Agena A rocket on 28 February 1959 at 21:49:16 GMT from Vandenberg Air Force Base in California. It was a prototype of the KH-1 satellite, but did not contain either a camera or a film capsule. It was the first satellite launched toward the South Pole in an attempt to achieved a polar orbit, but was unsuccessful. A CIA report, later declassified, concluded that "Today, most people believe the Discoverer 1 landed somewhere near the South Pole". The DISCOVERER program was managed by the Advanced Research Projects Agency (ARPA) of the U.S. Department of Defense and the U.S. Air Force. The primary goal of the program was to develop a film-return photographic surveillance satellite to assess how rapidly the Soviet Union was producing long-range bombers and ballistic missiles and where they were being deployed, and to take photos over the Sino-Soviet bloc to replace the Lockheed U-2 spyplanes. It was part of the secret CORONA program which was also used to produce maps and charts for the Department of Defense and other U.S. government mapping programs. The goal of the program was not revealed to the public at the time; it was presented as a program to orbit large satellites to test satellite subsystems and investigate the communication and environmental aspects of placing humans in space, including carrying biological packages for return to Earth from orbit. In all, 38 Discoverer satellites were launched by February 1962, although the satellite reconnaissance program continued until 1972 as the CORONA project. The program documents were declassified in 1995. Discoverer 1 was a test of the performance capabilities of the propulsion and guidance system of the booster and satellite. The launch took place from Vandenberg Air Force Base on a Thor-Agena A. After first stage burnout at 28,529 km/h, the rocket coasted to an orbital altitude where the second stage guidance system-oriented the spacecraft by means of pneumatic nitrogen jets. The second stage engine ignited when the correct attitude was achieved, putting the spacecraft into a polar orbit where it remained until re-entry on 17 March 1959. Discoverer 1 became the first man-made object ever put into a polar orbit. The difficulty was encountered receiving signals after launch, but the satellite broadcast intermittently later in the flight. In 1959, it was believed to have obtained orbit with speculation that the protective nose cone over the antennas was ejected just before the Agena fired and that the Agena then rammed into the nose cone, damaging the antennas. Discoverer 1 was a 5.73 m long, 1.52 m diameter cylindrical Agena-A upper-stage capped by a conical nosecone. The satellite casing was made of magnesium. Most of the 18 kg payload, consisting of communication and telemetry equipment, was housed in the nosecone. It included a high-frequency low-power beacon transmitter for tracking and a radar beacon transmitter with a transponder to receive command signals and allow long-range radar tracking. Fifteen telemetry channels (10 continuous and 5 commuted) were used to relay roughly 100 aspects of spacecraft performance. Unlike future Discoverer flights, this one did not carry a camera or film capsule. The satellite launched atop a Thor-Agena rocket. The Thor used liquid oxygen and RP-1 as propellants. The Agena used hypergolic fuels to boost the satellite into polar orbit. This combination of Thor and Agena would become the first booster rocket to send a payload to orbit using 2 stages. Five young men were in the launch crew of this historic mission placing the first spy satellite for the U.S. into polar orbit. The names of the young men, alphabetically, were James Boyle, Mark Jonah, John Lane, Jack Shields, the Test Conductor, and Erwin Warshawsky. Jack was 30 years of age. The others were all in their early to mid twenties. Just months before, in 1958 this same launch crew launched the first Intermediate Range Ballistic Missile from the West Coast of the United States. A couple of years later, Mr. Mark Jonah was an Assistant Test Conductor for the Titan 1 ICBM weapons program at Vandenberg AFB and in 1961, at 27 years of age, was promoted to Test Conductor for the Titan II ICBM weapons system at Vandenberg AFB. He was the youngest person in the U.S. weapons program to be given the responsibility to integrate all the ground support equipment, flight control, guidance, propellant and pressurization systems, launch control, and all other systems and launch a fully operational ballistic missile 5,000 miles down range to target. missile 5,000 miles down range to target.
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Discoverer 1 – amerykański satelita techno … Discoverer 1 – amerykański satelita technologiczny. Stanowił część tajnego . Discoverer 1 był pierwszym w historii satelitą, który osiągnął orbitę polarną. Satelitę skonstruowała firma Lockheed. Statek był zaadaptowanym członem rakietowym Agena A. Przystosowano go do przenoszenia systemu fotograficznego i kapsuły powrotnej (Discoverer 1 nie posiadał obu tych systemów), poprzez doczepienie do szczytu członu stożkowej obudowy. Znajdowało się tam 18 kg wyposażenia służącego do łączności i przesyłania telemetrii. W skład aparatury wchodziły: wysokoczęstotliwościowy nadajnik radiowy małej mocy (do namierzania statku z Ziemi) i radionadajnik radarowy przyjmujący komendy i umożliwiający dalekosiężne namierzanie radarowe statku. Piętnaście kanałów telemetrii (10 ciągłych i 5 komutowanych) było użyii (10 ciągłych i 5 komutowanych) było uży
, ディスカバラー1号（Discoverer 1）はアメリカ合衆国の人工衛星。コロナ偵察 … ディスカバラー1号（Discoverer 1）はアメリカ合衆国の人工衛星。コロナ偵察衛星計画における最初の衛星で、1959年2月28日1時49分（PST）にカリフォルニア州のヴァンデンバーグ空軍基地からソー・アジェナロケットによって打ち上げられた。 コロナ計画の偵察衛星であるKHシリーズ（Key Hole、鍵穴の意）の最初のタイプである、KH-1型のプロトタイプであったが、カメラやフィルムカプセルはどちらも搭載していなかった。 ディスカバラー1号は南極に向けて打ち上げられ、極軌道に投入しようとされた最初の人工衛星であるが、成功しなかった。後に機密解除となった中央情報局(CIA)の報告書では「今日ではほとんどの人間が、ディスカバラー1号は南極近くの何処かに落下したと信じている」と断定されていた。間が、ディスカバラー1号は南極近くの何処かに落下したと信じている」と断定されていた。
, Діскаверер-1 — американський прототип розвідувального супутника серії KH-1, що запускались за програмою Корона. Перша спроба запуску на полярну орбіту. Перший запуск космічного апарата з бази Ванденберг. Перший запуск ракети-носія .
, Дискаверер-1 (англ. Discoverer 1) — америк … Дискаверер-1 (англ. Discoverer 1) — американский космический аппарат. Прототип разведывательных спутников серии KH-1, запускавшихся по программе CORONA. Первый запуск с базы ВВС США Ванденберг в Калифорнии и первый запуск с использованием ракеты-носителя Тор-Аджена.использованием ракеты-носителя Тор-Аджена.
, Discoverer 1 fu il primo di una serie di s … Discoverer 1 fu il primo di una serie di satelliti artificiali che facevano parte del programma Corona, organizzato dal DARPA e dall'United States Air Force. Fu il primo prototipo del satellite da ricognizione KH-1, ma non aveva a bordo fotocamera né pellicola fotografica. Il satellite pesava 618 kg e fu lanciato il 28 febbraio 1959 con un razzo vettore Thor-Agena dalla Vandenberg Air Force Base. Il Discoverer 1 fu il primo satellite lanciato in orbita polare.primo satellite lanciato in orbita polare.
, Discoverer 1 was the first of a series of … Discoverer 1 was the first of a series of satellites which were part of the CORONA reconnaissance satellite program. It was launched on a Thor-Agena A rocket on 28 February 1959 at 21:49:16 GMT from Vandenberg Air Force Base in California. It was a prototype of the KH-1 satellite, but did not contain either a camera or a film capsule. It was the first satellite launched toward the South Pole in an attempt to achieved a polar orbit, but was unsuccessful. A CIA report, later declassified, concluded that "Today, most people believe the Discoverer 1 landed somewhere near the South Pole".r 1 landed somewhere near the South Pole".
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