Falha manobra para elevar a órbita da ISS

Iss_patch

A manobra orbital para elevar a órbita da estação espacial internacional foi suspensa no dia 16 de Maio de 2015 quando surgiram problemas nos motores do veículo de carga Progress M-26M.

Mais informações aqui.

2 comentários

    • Dinis Ribeiro on 28/05/2015 at 04:24
    • Responder

    Sugestão:

    Neste video, vemos os movimentos da antena do sistema “Kurs”….
    http://www.space.com/29493-how-to-mate-with-a-space-station-soyuz-cam-video.html

    Kurs (em russo: Курс) é um sistema de radiotelemetria usado para o acoplamento de espaçonaves no programa espacial russo.
    http://en.wikipedia.org/wiki/Kurs_%28docking_navigation_system%29

    • Dinis Ribeiro on 18/05/2015 at 11:47
    • Responder

    O problema terá sido solucionado, entretanto…

    ISS orbit adjustment manoeuvre conducted successfully
    http://tass.ru/en/russia/795203

    MOSCOW, May 18. /TASS/. Russia’s Mission Control Centre (MCC) has successfully conducted an operation to adjust the orbit of the International Space Station (ISS), a rocket and space industry source told TASS on Monday.

    The orbit correction was made with the Progress M-26M spacecraft engines.

    “The manoeuvre has been completed,” the source said.

    According to him, the spacecraft’s engines worked for 23 minutes. During this time the ISS orbit was lifted by 2.8 km to reach 405 km on the average.

    A space industry source said previously that on the night to May 16 the ISS orbit adjustment manoeuvre failed because the Progress cargo spacecraft’s control system cancelled the engines’ ignition.

    After that flight director of the Russian ISS section Vladimir Solovyov said that MCC specialists investigated the causes of the contingency during the ISS orbit correction manoeuvre on the night of May 16 and were ready to conduct another orbit correction in a backup mode on the night to Monday.

    Due to the fact that the manoeuvre will engage less Progress engines – not eight, but four – they worked longer than they were to work on May 16.

    The backup orbit adjustment scheme envisages the use of not all engines of the spacecraft.

    According to Solovyov, this adjustment has been conducted in order to create optimal conditions for the ISS crewmembers’ landing on June 11 and the launch of another cargo spacecraft in early July.

    Estive a dar uma vista de olhos a este site: http://www.mcc.rsa.ru/

    De acordo com os sistema de tradução automática:

    18 de maio de 2015 a correcção da órbita da Estação Espacial Internacional.

    De acordo com os cálculos de apoio à navegação balística serviço Mission Control Center FSUE Tsniimash motores TGK “Progress M-26M” foram incluídos em 3 horas e 30 minutos, horário de Moscou e passou 1,922 segundo.

    Como resultado, a estação espacial recebeu a velocidade de incremento de 1,75 m / s .

    Após a manobra a altura média da estação de voo aumentada em 3,2 km e totalizaram 401,88 km.

    Como resultado dos parâmetros de correcção da órbita começou da seguinte forma:

    a altura mínima acima da superfície da Terra – 400,76 km,
    a altura máxima acima da superfície da Terra – 417,75 km,
    período orbital – 92,54 min,.
    inclinação – 51,66 graus.

    A correcção efectuada a fim de formar uma órbita de trabalho da estação antes de embarcar no transporte tripulado nave espacial “Soyuz TMA-15M”.

    Existirá uma (ligeira?) discrepância:

    Tass: 23 minutos de correcção orbital = (23×60) 1380 segundos
    http://www.mcc.rsa.ru : 1922 segundos = 32 minutos

    Qual o aumento exacto que foi efectuado na altitude na orbita da ISS?

    Tass: + 2,8 Km
    MCC: + 3,2 Km

    Mais um link: http://www.npointercos.jp/MCCMISS.html

    Mission Control Center Moscow for International Space Station (TsUP)
    is located in Korolov city near RSC Energia.

    TsUP, the Mission Control Center of the Russian Federal Space Agency, has three control rooms directly involved in ISS operations. Main control room has about 30 working stations. Two other rooms are for ISS’ Zarya module and scientific equipment.

    TsUP is integrated with a “world network of mission-control centers”.

    Para aprofundar: http://en.wikipedia.org/wiki/Flight_controller

    O site em Português está bastante incompleto: http://pt.wikipedia.org/wiki/Controlador_de_voo

    Este está um pouco melhor: http://pt.wikipedia.org/wiki/Centro_de_Controle_de_Miss%C3%A3o

    Mas aqui está muito mais completo: http://en.wikipedia.org/wiki/Mission_control_center

    E em resposta a esta questão que embora refira o “extinto” Shuttle, não está desactualizada:

    During docked operations, which MCC control room has precedence, shuttle or station? How is coordination handled between the two control rooms and with MCC-Moscow?

    Neste site (http://spaceflight.nasa.gov/feedback/expert/answer/mcc/sts-112/10_12_12_41_31.html ) há uma resposta interessante:

    Let me first answer your question by stating that both the shuttle and the station flight control rooms, as well as MCC-Moscow, are all governed by the same joint flight rules. The flight rules document agreed-to decisions regarding joint operations — operations that involve a combination of vehicles or crews.

    The rules are debated and reworked over several months during preflight, and define the guidelines of the docked operations.

    To get back to your question, during the actual mission, both teams generally follow the predefined rules and procedures. The flight directors can talk to each other, if needed, and come to a joint agreement if something unique comes up.

    The shuttle and ISS flight directors caucus often, and the ISS flight director and the MCC-Moscow flight director can also communicate, if needed, although they are usually assisted by the RIO (Russian Interface Officer) for coordination.

    Uma curiosidade sobre uma problemática mais geral:

    Did a Chinese LENS CAP almost destroy the ISS? Station dodges space debris from spy satellite to avoid disaster
    http://www.dailymail.co.uk/sciencetech/article-2834434/Did-Chinese-LENS-CAP-destroy-ISS-Station-dodges-space-debris-spy-satellite-avoid-disaster.html#ixzz3aUBExlbb

    Nasa mission controllers in Texas have moved the ISS to avoid a collision

    They increased the speed of the station by 16ft (5 meters) per second

    This raised the height of the station by one mile (1.6km) and allowed it to dodge a piece of incoming debris

    It’s thought the debris was a lens cap from the Chinese Yaogan-12 satellite

    A European cargo spacecraft was used to move the ISS

    If debris hit the station it could spell disaster and destroy it

    ISS has been moved many times before to avoid collisions with debris <———————————

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