Obecné otázky o kosmonautice
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fretka323
- Inženýr kosmonautiky
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Re: Otázky
Když už se to zde nakouslo - bylo by možné ze střední Evropy pozorovat západní starty? Mám na mysli z Cape Canavaral, Kourou, Vanderguard apod?? Nejde mi ani tak o to, že bych vzal triedr a koukal přímo na rampu (tak mim zas nejsem), ale takový horní stupeň zářící noční oblohou by mohl být super podívaná.
Klidně mne oslovujte Radim.
Re: Otázky
Co se Kourou týče, tak pokud vím jedinou teoretickou možností bylo ATV,jinak se nad Evropu z tohohle kosmodromu nestřílí.
Vandenberg - Střílí jen na polární dráhy
Mys Canaveral - Pokud se nepletu, tak střelecký prostor nad střední Evropu nevede.
Vandenberg - Střílí jen na polární dráhy
Mys Canaveral - Pokud se nepletu, tak střelecký prostor nad střední Evropu nevede.
"Země je kolébkou života, ale nelze žít věčně v kolébce ..." - Konstantin Eduardovič Ciolkovskij
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fretka323
- Inženýr kosmonautiky
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Re: Otázky
Aha, díky. Mě ale zajímalo spíš, jestli je možné vidět ten vrchní stupeň. Že to nad námi není hotová dálnice mi je jasné, ale teoreticky jestli by to šlo...
Klidně mne oslovujte Radim.
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AlesH
- Vesmírný průzkumník
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Re: Otázky
Po startu z Cape Canaveral k ISS skutečně loď a horní stupeň letí nad Evropou (cca 20 minut po startu) tak, že je to pozorovatelné i z ČR a SR. Jednou jsem takto viděl raketoplán (včetně odhozené externí nádrže) a jednou dokonce i Dragon a poslední stupeň Falconu. Přelet je ale jen cca 20° nad jihozápadním obzorem a k pozorování musí být splněno pár zásadních podmínek (skoro jasno a doba přeletu krátce po západu Slunce). Proto jsou taková pozorování poměrně vzácná.
Re: Otázky
Prvý krát počujem že ide sledovať druhý stupeň a loď od nás super musím to skúšať 
"When you wish upon a falling star, your dreams can come true. Unless it's really a meteor hurtling to the Earth which will destroy all life. Then you're pretty much hosed, no matter what you wish for. Unless it's death by meteorite."
Re: Otázky
Pokracovani debaty o zadokovani a servisni misi k HST, info cca pul roku stare...
In December 2014, David L. Akin of the University of Maryland’s Space Systems Laboratory presented the results of his study of maintaining Hubble using the Crew Dragon or Sierra Nevada Corp.’s Dream Chaser commercial crew spaceplane. He considered mounting an inflatable airlock in the nose cap of Dragon to improve the efficiency of spacewalks, although this would make it impossible to form a rigid dock to Hubble. The trunk could hold relatively long and robust robot arms — with additional joints, one design might be as capable as the shuttle’s Canadarm. If two smaller arms were carried, one could form a “soft dock” and create a path for astronauts to use to get to the telescope, while the other manipulated cargo and tools.
SpaceX does not provide much information to the public about its plans, or even details of nearly operational vehicles. However, Akin told me, “As I understand it, the avionics on Dragon are capable of operating in a vacuum,” meaning the capsule could be evacuated to allow spacewalks without the inflatable airlock. He added, “SpaceX is also developing their own spacesuit in house.”
There is no longer any excuse to wastefully abandon major assets — built and placed in orbit at great expense — and let them fall into the ocean. After refurbishing Hubble, NASA should also consider using Orion to maintain the JWST, utilizing a docking ring that was added to the telescope for just such a contingency.
- See more at: http://spacenews.com/op-ed-a-not-so-fin ... GQo0O.dpuf
EDIT:
Orion MPCV could even support doing an EVA from the hatch on the capsule.
“We have a hatch that is big enough that an astronaut in a space suit can get out,” Hopkins said, “and the internal systems in the spacecraft are designed to tolerate the cabin being depressurized. We don’t rely on air circulation to carry the heat away from the electronics – they have their own cold plates to take the heat away. The knobs are designed to be manipulated with spacesuit gloves on, not just bare hands. A lot of those features just worked out to be pretty applicable to the asteroid mission because it was designed for a similar set of mission requirements.”
In December 2014, David L. Akin of the University of Maryland’s Space Systems Laboratory presented the results of his study of maintaining Hubble using the Crew Dragon or Sierra Nevada Corp.’s Dream Chaser commercial crew spaceplane. He considered mounting an inflatable airlock in the nose cap of Dragon to improve the efficiency of spacewalks, although this would make it impossible to form a rigid dock to Hubble. The trunk could hold relatively long and robust robot arms — with additional joints, one design might be as capable as the shuttle’s Canadarm. If two smaller arms were carried, one could form a “soft dock” and create a path for astronauts to use to get to the telescope, while the other manipulated cargo and tools.
SpaceX does not provide much information to the public about its plans, or even details of nearly operational vehicles. However, Akin told me, “As I understand it, the avionics on Dragon are capable of operating in a vacuum,” meaning the capsule could be evacuated to allow spacewalks without the inflatable airlock. He added, “SpaceX is also developing their own spacesuit in house.”
There is no longer any excuse to wastefully abandon major assets — built and placed in orbit at great expense — and let them fall into the ocean. After refurbishing Hubble, NASA should also consider using Orion to maintain the JWST, utilizing a docking ring that was added to the telescope for just such a contingency.
- See more at: http://spacenews.com/op-ed-a-not-so-fin ... GQo0O.dpuf
EDIT:
Orion MPCV could even support doing an EVA from the hatch on the capsule.
“We have a hatch that is big enough that an astronaut in a space suit can get out,” Hopkins said, “and the internal systems in the spacecraft are designed to tolerate the cabin being depressurized. We don’t rely on air circulation to carry the heat away from the electronics – they have their own cold plates to take the heat away. The knobs are designed to be manipulated with spacesuit gloves on, not just bare hands. A lot of those features just worked out to be pretty applicable to the asteroid mission because it was designed for a similar set of mission requirements.”
Re: Otázky
Chcem sa opýtať je tu na fóre vlákno k téme aerospike ? 
V poslednej dobe ma to totiž dosť zaujíma 
V poslednej dobe ma to totiž dosť zaujíma "When you wish upon a falling star, your dreams can come true. Unless it's really a meteor hurtling to the Earth which will destroy all life. Then you're pretty much hosed, no matter what you wish for. Unless it's death by meteorite."
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RichardPavlov
- Vesmírný nováček
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Re: Otázky
môže mi niekto povedat či tu máte aj niečo o firme Escape dynamics?
Re: Otázky
O této firmě se u nás zatím nepíše. Bylo by potřeba, aby nějak intenzivněji vstoupila na trh. Já se přiznám, že jsem o ní teď slyšel poprvé a musel jsem googlit nějaké informace. Obrázky vypadají zajímavě. Ale jejich metody (elektromagnetick poháněný SSTO) mi přijdou trochu sci-fi.
"Země je kolébkou života, ale nelze žít věčně v kolébce ..." - Konstantin Eduardovič Ciolkovskij
Re: Otázky
Byla o ní krátká zmínka ve vlákně Nové pohony kosmických lodí a o tomto principu je okrajově zmíněno ve vlákně o kosmickém výtahu. Možná by stálo za to udělat z jejich Press release nějaký článeček. Mrknu se na to. 