Rank of Countries by Space Technology (REQUEST!)

Discussion in 'World Affairs' started by XTREME, Jun 7, 2012.

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  1. XTREME
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    XTREME FULL MEMBER

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    Hello!

    Could somebody please provide me a valuable link containing detailed information on the countries ranking according to Space Technology?

    Thank you!
  2. SOHEIL
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    SOHEIL ELITE MEMBER

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  3. Martian2
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    Martian2 SENIOR MEMBER

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    Current Space Technology Leaders in the proper rank

    1. Chinese space technology is the most reliable. Fifteen out of fifteen successful rocket launches in 2010. (Manned and unmanned space capability)

    2. Russian space technology is pretty good. However, a few rockets blow up now and then. (Manned and unmanned space capability)

    3. America doesn't have manned space vehicles anymore. However, unmanned American rockets have a good record. (Unmanned space capability only with the retirement of Space Shuttles)
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  4. XTREME
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    XTREME FULL MEMBER

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  5. shuttler
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    shuttler ELITE MEMBER

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    Check this one out please:

    Futron Corporation Releases Fourth Annual Space Competitiveness Index (SCI)
    Aug 15, 2011

    1. USA
    2. Europe
    3. Russia
    4. China
    5. Japan
    6. india
    7. Canada
    8. S Korea
    9. Israel
    10 Brazil


    Press Releases
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  6. zip
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    zip FULL MEMBER

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    America
    russia
    china
    france
    india
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  7. KRAIT
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    KRAIT ELITE MEMBER

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    He is asking about the leader in space technology..i think the order will be just opposite...what say you?

    Seems just about right....:tup:
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  8. Android
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    Android SENIOR MEMBER

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    6th isn't too good we need to spend more on space research we need to be atleast in top 5
  9. longbrained
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    longbrained SENIOR MEMBER

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    Maybe this link helps you: space agencies

    But overall, I would rank Russia at the top. They are the best with regard to space technologies. Even the American rockets have started to use Russian engines. But on the electronic and sensor tech, US is at the top. Doing it the most cost effective way goes to Chinese. The rest have alot of catch up to do.
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  10. Sharki
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    Sharki FULL MEMBER

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    1 - Usa
    2 - Russia
    3 - France
    4 - China
    5 - Japan
    6 - India
    7 - Israel
    8 - Others.
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  11. Jade
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    Jade SENIOR MEMBER

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    I don't think France has any more a independent space program. They are now part of European Space Agency

    My Ranking would be

    NASA (US)
    European Space Agency (EU)
    Russian Federal Space Agency (Russia)
    China National Space Administration (China)
    Indian Space Research Organisation (India)
    Japan Aerospace Exploration Agency (Japan)

    I would rank India above Japan, because Japan space program is relatively new and depends a lot on US programs, moreover, India's plans are aggressive, while Japan's are stagnant
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  12. XTREME
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    XTREME FULL MEMBER

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  13. Martian2
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    Martian2 SENIOR MEMBER

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    No. Russia cannot build modern satellites like China.

    Space technology is more than the rocket launch vehicle. It is also about the modern satellite technology for telecommunications. China beats Russia hands down.

    ----------

    China's DFH-4 matches Western standards for modern communication satellites

    The characteristics of a modern communications satellite are:

    1. It is the size of a city bus and weighs about 10,000 pounds.

    2. It lasts for 15 years.

    3. It has approximately 32 transponders.

    [​IMG]
    China's DFH-4 satellite bus (or platform) designed and built by CGWIC (i.e. China Great Wall Industrial Corporation)

    [​IMG]
    DFH-4 satellite technical specifications

    [​IMG]"A typical satellite has 32 transponders. Transponders each work on a specific radio frequency wavelength, or “band.” Satellite communications work on three primary bands: C, Ku and Ka. C was the first band used and, as a longer wavelength, requires a larger antenna. Ku is the band used by most current VSAT systems. Ka is a new band allocation that isn’t yet in wide use. Of the three, it has the smallest wavelength and can use the smallest antenna." (Source: Beyond line of sight communications)

    [​IMG]
    Western satellite specifications look identical to China's DFH-4 satellite. (Source: User:Bhamer/sandbox - Wikipedia, the free encyclopedia)


    China's DFH-4 is comparable to Western satellites. Its 30 transponders (or perhaps the Pakistanis weren't willing to buy more than 30 transponders) are very close to the average of 32 transponders on a modern satellite. At 5,200 kg or 11,440 pounds, it is approximately the same weight as Western satellites in the 10,000-pound class. The DFH-4 uses the "three primary bands: C, Ku, Ka," and L bands. Its solar panels generate the standard 8 kW of power.

    ----------

    China Looks To Boost Satellite Manufacturing With DFH-4 Line

    "China Looks To Boost Satellite Manufacturing With DFH-4 Line
    By PETER B. de SELDING
    Space News Staff Writer
    posted: 18 October 2006
    03:30 pm ET
    ...
    PARIS -- The first of a new line of high-power telecommunications satellites produced in China and already sold to two export customers is scheduled for launch in late October for China's Sinosat direct-broadcast television provider, Chinese space officials said.

    The Sinosat-2 satellite, the first of the DFH-4 spacecraft built by the China Academy of Space Technology (CAST), has faced several delays but is now expected to be launched in the coming weeks by a Chinese Long March 3B rocket from China's Xichang Satellite Launch Center in southwest China's Sichuan Province.

    If it functions as planned, the DFH-4 satellite design will bring China's domestic satellite manufacturing industry closer to the level of its U.S., European and Japanese counterparts.

    DFH-4 is the third generation of China-built telecommunications spacecraft and carries some 800 kilograms of payload -- four times the capacity of the previous Chinese product, the DFH-3. Weighing up to 5,300 kilograms at launch, the DFH-4 platform is built to operate for 15 years -- double the DFH-3's life expectancy -- and provide up to 10 kilowatts of power at the end of its service life.
    ...
    Wang said CAST has tested the DFH-4 design to a maximum capacity of 54 transponders, 38 in Ku-band and 16 in C-band. The satellite's upper limit would be around 5,600 kilograms, he said in the presentation. (article continues)"
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  14. northeast
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    northeast FULL MEMBER

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    russia is still far advanced than china in space tech,that's a common sense.
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  15. XTREME
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    XTREME FULL MEMBER

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    Thanx man, quite a detailed information.
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