顯示具有 太空 標籤的文章。 顯示所有文章
顯示具有 太空 標籤的文章。 顯示所有文章

2008年12月16日 星期二

Emerging China, Unbalanced Asia - on the new rising space powers

Flying to the moon, it used to be the legend of China. Now, it becomes a new mission of China National Space Administration. After decades of developing in space technology, China has achieved many space missions. One of the major succeed is that China has accomplished the first space walk mission just after the China's Olympics. However, does it mean that China has the superior space power than any other country in Asia? Can we say that, China's space power has unbalanced the structure of the Asia security? Obviously, it won't be quiet at all in the sky of Asia in the future.

The space power of China

In this century, sending astronauts into the space is the most important mission for Chinese government. They believe that China will be a great country by have superior space power.
Tsien Hsue-Shen (錢學森), the father of modern China’s space program, he was also the first director of the ballistic missile program. In 1958, with the help of the Soviets, China started the plans of the Dongfeng missile (東風導彈) which was first successfully launched in 1964.
In 1970, On April 24, China launched its first satellite, DFH-1 (Dong Fang Hong-東方紅), it transmitted the anthem during its 15-day mission. By this time, the carrier was designed and operated by China itself. In 1985, China entered the commercial space launch market. Between 1985 and 2000 they launched 27 foreign-made satellites. By the last century, China has become one of the key players in the outer space.
China has independently developed the "Long-March" (長征火箭) rocket group, containing 12 types of launching vehicles capable of launching satellites to near-earth, geo-stationary and sun-synchronous orbits. The largest launching capacity of the "Long-March" rockets has reached 9,200 kg for near-earth orbit, and 5,100 kg for geo-stationary transfer orbit, able to basically meet the demands of customers of all kinds. Since 1985, when the Chinese government announced to put the "Long-March" rockets into the international commercial launching market, China has launched 27 foreign-made satellites into space, thus acquiring a share of the international commercial launching market. Up to now, the "Long-March" rockets have accomplished 63 launches, and made 21 consecutive successful flights from October 1996 to October 2000.China has initiated its manned spaceflight program in 1992, and the unmanned experimental spacecraft "Shenzhou" (神州) was launched in November, 1999. In October, 2003, China became the third countries to launch an astronaut into orbit. The second manned Sheenzhou -6 was launched in 2005. These two successful missions has inspired Chinese people. It seems that Chinese Dragon is orbiting the earth. Chinese government has received a huge political pride.
There are two more political prides of China in the beginning of this century. On 24Th. Oct. 2007, China launched its first lunar probe Chang’e-1(嫦娥一號), first step into its three-stage moon mission. One month latter, Chang’e-1 sent back the first photo of the moon, marking a new milestone. The other one is the space walk in 2008. The space walk is also the third manned flight for China.


The space power of Japan and India
Japan
Compared with China, Japan has similar space capabilities. Japan has its own launch vehicle H-IIA, although it has not send astronauts into orbit. The first successful launch was back in 1994. The H-11A is designed to meet diverse launch demands. it can push a two-ton class satellite into geostationary orbit, it can also to launch payloads into low and medium-altitude orbits. Moreover, Japan achieved lunar exploration earlier than China. "The SELenological and ENgineering Explorer "KAGUYA"(SELENE), Japan’s first large lunar explorer, was launched by the H-IIA rocket on September 14, 2007 (JST). The mission, which is the largest lunar mission since the Apollo program, is being keenly anticipated by many countries."
However, there is a big difference between Japan's and China's space development strategies. China tends to develop space technologies on its own from the launch system to satellite manufacture. Japan adopts a more open strategy to develop space skill. Japan takes part in the International Space Station by building the "Japanese Experiment Module (JEM) 'KIBO,' the first Japanese manned experimental facility, to the ISS started in March 2008, and is scheduled to be completed in 2009."

source from Japan Aerospace Exploration Agency

India
"Chandrayaan-1 spacecraft was launched from the Satish Dhawan Space Centre, SHAR, Sriharikota by PSLV-XL (PSLV-C11) on 22 October 2008", Chandrayaan-1 is India's lunar exploration project which was approved by India's government in 2003. Until now, there are three Asian countries, Japan, China and India undertaking missions to moon. And they all send spacecrafts to orbit the moon. That means,India as Japan and China has ability to launch payloads into Leo, Meo and Geo orbits.
India builds "the Geo-synchronous Satellite Launch Vehicle (GSLV) is designed to place satellites in Geo-Synchronous Transfer Orbit (GTO)" by adopting the Polar Satellite Launch Vehicle (PSLV) which has been developed in the early 90's. India developed its launch system since 1962 and the first sounding rocket launch in November,1963. In the 70's, India developed a new launch system Satellite Launch Vehicle to carry satellite. The first SLV-3 with satellite Rohini was launched in 1979, failed to place the satellite to be in orbit. However, it succeeded in the following year.

source from Indian Space Research Organisation


T
he Comparison of Budgets and Main Missions

































































country


CHINA


JAPAN


INDIA


RUSSIA


ESA


NASA


2005 budget


$0.50 B

$2.50 B


$0.70 B


$0.70 B


$3.70 B


$16.10 B


2006 budget


$1.50 B

$2.15 B


$0.82 B


$0.87 B


$3.52 B


$16.62 B


2007 budget


$1.50 B

$2.21 B

$0.88 B

$1.32 B

$4.02 B

$16.10 B

lunar exploration


2007

Chang'e






2007

KAGUYA




2008

Chandrayaan-1




1959, Soviet probe Luna 2, landed on the Moon




2003, SMART 1


1969,

the first man on the Moon


manned spaceflight


2003

Shenzhou


no


no


1961

Vostok 1


no


1961

freedom 7


Global

Position

System


Beidou

Quasi-Zenith

IRNSS

GLONASS

Galileo

NAVSTAR GPS
sources from the space report, NASA, space.com, ISRO, JAXA, CNSA

Launch vehicle performance in 2007

http://www.thespacereport.org/images/content/tsr08_3d.png







source from the space report 2007, the Space Foundation

The security structure of Asia pacific region-
Peace or Threat

During the cold war era, it was the vital competition between the U.S. and the U.S.S.R. to control the outer space. At that time, there is no serious international cooperation to develop space technologies, there no serious international space organization, either.
However, after the collapse of the soviet union, the idea to develop space technologies has changed fundamentally. Those technologies can be adopted into commercial applications. The most popular one is the Global Position System. On the other hand, there are some international cooperation or organizations to develop space technologies for peace. The most famous cooperation is the International Space Station (ISS), and the most well known organisation is European Space Agency (ESA).
To build a space station was a vital space race between the U.S.and the U.S.S.R. In the military sense, who builds a space station who domains the earth. Now, the space station becomes an international cooperation. The International Space Station was launched on November 20, 1998 and the first crew of astronauts arrived on the InternationalSpace Station on November 2, 2000. There are 16 countries: Canada, Japan, Russia, 11 nations of the European Space Agency and Brazil join the cooperation.All these countries have their own contributions to the ISS. For example:
  • The United States has the responsibility for developing and ultimatelyoperating major elements and systems aboard the station. The U.S. elements include three connecting modules, or nodes; a laboratory module; truss segments; four solar arrays; a habitation module; three
    mating adapters; a cupola; an unpressurized logistics carrier and a
    centrifuge module. The various systems being developed by the U.S.
    include thermal control; life support; guidance, navigation and
    control; data handling; power systems; communications and tracking;
    ground operations facilities and launch-site processing facilities.

  • The European Space Agency is building a pressurized laboratory to be
    launched on the Space Shuttle and logistics transport vehicles to be
    launched on the Ariane 5 launch vehicle.

  • Japan is building a laboratory with an attached exposed exterior platform for
    experiments as well as logistics transport vehicles.

  • Russia is providing two research modules; an early living quarters called the
    Service Module with its own life support and habitation systems; a
    science power platform of solar arrays that can supply about 20
    kilowatts of electrical power; logistics transport vehicles; and Soyuz
    spacecraft for crew return and transfer.

source from space.com , the International Space Station website

European Space Agency is created in 1975, there are 10 founding members: Belgium, Germany, Denmark, France, United Kingdom, Italy, the Netherlands, Sweden, Switzerland and Spain. "ESA's purpose shall be to provide for, and to promote, for exclusively peaceful purposes, cooperation among European States in space research and technology and their space applications, with a view to their being used for scientific purposes and for operational space applications systems....." In 2005, A joint meeting of the EU Council and the ESA Ministerial Council, known as the 'Space Council' decided that ESA and its Member States are in charge of space exploration and space science, and for providing the tools needed for space activities, in particular access to space and technology. Now, ESA has 18 members: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, The Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.

source from ESA website

China and Japan has established their own international space organizations. Those organization have been working for a long time. However, they are not as well organized as ESA. Members have no obligations in Japan's or China's space organizations. Conferences and forums have not touched policy or security issues. On the other hand, space projects in these organizations are not big enough to collaborate countries in Asia.
China organize Asia-Pacific Space Cooperation Organization (APSCO)
based in Beijing in 2005. At the beginning, Pakistan and Thailand jointly proposed the initiative of the Asia-Pacific Multilateral Cooperation in Space Technology and Applications (AP-MCSTA) in 1992. In July 2001, the AP-MCSTA Secretariat was established. In 2003, "official delegations from nine Asia-Pacific countries attended the Meeting of the Drafting Group of the APSCO Convention in Beijing". In 2005, "the signing ceremony of the APSCO Convention was held in Beijing and representatives from the Governments of Bangladesh, China, Indonesia, Iran, Mongolia, Pakistan, Peru and Thailand signed the Convention".
The space project in APSCO is the Small Multi-Mission Satellite (SMMS). "The MOU on the Cooperation in Small Multi-Mission Satellite (SMMS) project was jointly signed by China, Iran, Republic of Korea, Mongolia, Pakistan and Thailand on April 22 1998 in Bangkok". and "the first optical satellite of the SMMS has been scheduled to be launched by China either in late 2007or early 2008".

source from AP-MCSTA website , global security.org

Japan established the Asia-Pacific Regional Space Agency Forum (APRSAF) in 1993, which is "to enhance the development of each country's space program and to exchange views toward future cooperation in space activities in the Asia-Pacific region." So far, the APRSAF still focus on holding conference and workshop. The participants includes Australia, Bangladesh, Brunei, Bhutan, Canada, Cambodia, China,France, Germany, India, Indonesia, Korea, Lao, Malaysia, Mongolia, Union of Myanmar, Nepal, New Zealand, Pakistan, Philippines, Russia, Singapore, Sri Lanka, Thailand, the U.S., and Viet Nam.

source from APRSAF website


Unbalanced Asia

In January, 2007, China launched anti-satellite (ASAT) weapons designed to destroy satellites for strategic military purposes. The Chinese Feng Yun 1C (FY-1C) -an inactive Chinese weather satellite was destroyed by "a ground-based medium-range ballistic missile. This would probably be the DF-21 / CSS-5 medium range ballistic missile, with a range of 1800 km carrying a 600 kg warhead". Moreover, the ASAT "intercepted the target at an altitude of variously reported as either 530 or 537 miles. This altitude is consistent with the operational altitudes of American and Japanese imagery intelligence satellites". This test raised the security concern for China's neighbors in Asia and the US. By now, there are only three countries, China, Russia and the US. have developed anti-satellite (ASAT) weapons.

source from globalsecurity.org

As we know, there are no projects like the ISS, nor multinational organizations like ESA in Asia and Space technologies can be easily adopted into military applications. In other words, space power could danger Asia's security because there is no mutual trust in this region. Any country owning superior space power in Asia, will become a super power in this area. Therefore, the development of space technologies in Asia would turn out to be a space race just like what happened in the last century.

2008年7月21日 星期一

太空圓夢的終極挑戰─喝下同伴的汗水和尿液

一個月前,國際太空站的廁所發生故障,引起人們對太空廁所的關注。事實上,太空站的廁所最近有了突破性的技術發展,除了讓太空人更舒適地上廁所之外,還可以將尿液變成水。

圖片就是將尿液變成水的機器,以及機器的設計者Bob Bagdigian

這個價值兩百五十萬美金的廁所已經成功地將80%尿液過濾處理成可以喝的水,不只如此,這套維生控制系統還可以回收濕氣、汗水和空氣。為了確保回收尿液所製成的水與正常水的口感一致,在研發系統的過程中,還曾經要求工作夥伴進行水與尿的盲目測試。Bob先生特別強調,他並沒有因為這項計畫而失去朋友。

現在這套系統進行新的改造研究計畫,以便安裝在NASA最新的Orion飛行器上。為了進行這項工程,包含週末假日,NASA每天必須收集30公升的尿液。這項尿液收集大作戰,將持續到七月底。

圖片中的瓶子就是NASA員工為了太空人的廁所做的努力。

2008年6月25日 星期三

科技始終來自海尼根


還記得在火星海尼根的廣告嗎?


這件事終於發生了,雖然nasa團隊的表現比不上廣告的那群人,而且也沒有精采的3D模擬動畫,但是,地球人找火星人的事終於發生了。在控制室裡,nasa團隊只能透過無線電通訊以及數據畫面判斷鳳凰號phoenix登陸的情形,似乎有點無厘頭。如果配合海尼根的廣告畫面,加上影片中高度倒數的聲音,我們也可以想像進入火星。

摺紙飛機也是太空實驗


國際太空站iss大概是目前最夯的太空議題,另一個很夯的話題是機器人rover登陸火星。
國際太空站的意義也在近幾年的發展上有了結構性的改變。國際太空站的前身是蘇聯的和平號mir,最初計畫目的是蘇聯爭奪太空爭霸戰中的戰略地位。蘇聯瓦解後,和平號有了和平用途,出現在布魯斯威利在世界末日(Armageddon)拯救地球時太空梭的補給停靠站。現在的太空站iss除了世界和平、拯救地球外,就是有錢人的太空度假勝地。
不過, 這樣講也有欠公允,iss也有許多為了全人類發展的實驗,其中一項最有趣也最容易被理解的實驗是日本東京大學設計的摺紙飛機,整個實驗過程就是太空人在太空站外將紙飛機射向地球。為了避免紙飛機在穿越地球的大氣層經不起高溫燃燒,因此紙張經過了特殊塗料的處理,足以抵抗高達 8,600 公里時速的風阻產生攝氏250度的高溫。這項紙飛機實驗的結果有助於日本發展無人太空飛行器的關鍵技術。

這段影片介紹了日本太空艙kibo,也就是紙飛機實驗的地點。其中有部分片段是介紹iss。


這段影片介紹紙飛機在地球準備的情形。

2008年6月24日 星期二

星際大戰的畫面搬到現存的世界

Rocket Racing League 在youtube 的影片




這是另一個較完整的介紹


火箭競速組織的網址 http://www.rocketracingleague.com/

2008年6月15日 星期日

拿相機到太空旅行




美國「太空探險公司」(Space Adventures)11日宣布,該公司專為赴「國際太空站」旅遊打造的純私人航班將在2011年展開首航,而網路搜尋引擎巨擘Google共同創辦人布林已預付500萬美元訂金,可望成為首航行程的太觀光客。


這則新聞告訴我們,除了需要3500萬美金,以及健康的身體接受訓練以外,到太空觀光似乎越來越容易。只是到了太空之後,能做些什麼事?看看窗外的風景,似乎有點不夠專業;執行太空任務,修理人造衛星,顯然不切實際;如果有機會離開地球的話,最好的計畫就是執行太空取像任務。拿台照相機到ISS國際太空站,拍些相片。回到地球後,這些相片可以留作紀念外,還可貼到NASA網站到處炫耀這次的太空任務。

千萬不可以小看太空取像這件事,類似的任務最早出現在1961年美國太空總署的水星任務。幾十年來,太空取像任務已經累積了四十五萬張的相片,所使用的相機包括Hasselblad, Linhof, Rolleiflex, and Nikon等手持取像設備。

未雨綢繆,現在可以開始準備執行任務:首先,你需要一台數位相機,目前太空站任務小組Expedition 17的配備是Kodak 760C 以及 400 mm 的鏡頭。然後,開始練習照相,等待火箭發射直達國際太空站。


















箭頭所指的地方就是你未來在ISS裡面的取像地點









就是這裡,紅色箭頭處















這些人可能是你在太空站的夥伴:Expedition 17任務小組


















這是地球不是月球






















這也是地球















這是從太空站拍攝高雄和小琉球的相片








這是從太空站拍攝台北的相片

2008年6月12日 星期四

台灣的衛星參與世界救災

衛星科技讓人聯想到的用途,通常是偷拍敵國的軍事設施、飛彈基地。不然就是,用來全民公敵,監視、竊聽異議份子。其實,衛星還是可以拿來做好事,例如:最近很紅的福爾摩沙二號衛星就拍了很多自然或人為災害的影像,即時提供影像作為救災的參考依據UNOSAT是聯合國轄下的組織,他的主要工作就是利用衛星技術來幫助處於危機或災害下的困苦人民。

另外,還有一個組織是 The International Charter主要的工作也是提供衛星資源,協助救災。雖然台灣都積極參與這些國際組織的工作,卻無法以國家的名義成為會員。

第一張衛星影像圖是台灣提供給UNOSAT使用,地點就是中國四川北川的堰塞湖,並從連續影像的分析判斷湖泊水位持續升高,可能危及下游的居民。

第二張衛星影像圖是台灣提供給The International Charter使用,與spot image影像融合,分析2006年七月阿根廷Chubut, Neuquén and Río Negro等區域所發生的水災。

2008年5月20日 星期二

台灣從天空參與了世界

NASA news 刊登福衛二號拍攝四川堰塞湖的影像http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=18034



四川地震讓台灣的衛星科技受到些許的關注,若要說到意義,那就是我們從天空參與救災。除了慈濟、慷慨的台商以外,台灣還可以提供即時衛星影像圖片。














福爾摩沙二號衛星參與世界的救災活動,不只是四川這個地震,也涵蓋了世界各地的災害現場。因為衛星人道主義就是拍下人類摧殘地球後,自然對人類反撲的珍貴紀錄。
還記得,2006年底吉尼號貨輪的漏油事件。






這是2007年八月美國明尼蘇達州斷橋事件


















這是2007年南加州大火現場


除了這些以外,2004年年底的南亞大海嘯、2006年5月印尼大地震,福衛二號都是目擊者。

台灣參與世界不必仰望中國的臉色,卻要反身自省,除了誇耀經濟發展,我們貢獻什麼給地球。

2008年5月14日 星期三

urmap與googlemap的比較

這是最近越來越受歡迎的網站urmap
http://www.urmap.com/
影像圖片是台灣衛星空照圖,只是,很少人注意到影像的來源。
本站內容版權所有,轉載請與 友邁科技 聯絡。
福衛二號影像由
國家太空中心台灣師範大學 授權,向量圖資由 勤崴國際 提供

自己照相,自己處理,不用付錢給國外友人

當然知名度與googlemap有一段距離,根據google trend 的調查及交叉比對,全世界查詢googlemap以及urmap的情況
googlemap-

urmap-

不過,在台灣的情況顯然不相上下










發展衛星科技對台灣來說曾經是遙不可及,自主發展技術、推廣衛星影像應用也被當成癡人說夢。there is a Googleearth. don't bother to do it on our own. 不過,願意做傻事的人還是很多。歷經三年的研發,國家太空中心吳豐敏博士及其團隊為福衛二號衛星開發出影像處理系統-高機動衛星高解析度影像處理系統自主研發及國內外終端站建置。

we deserve it-行政院傑出科技貢獻獎



2008年5月13日 星期二

自己寫才會得獎

行政院傑出科技貢獻獎-福衛二號與影像處理系統軟體

......國科會副主委謝清志,做下關鍵性的決策,更改原定計劃,將福爾摩沙衛星二號上重要的IPS(影像處理系統軟體)改由國內自主研發,經三年努力,研發終獲成功,大大提昇我國在高科技領域自主研發能量,也讓台灣在衛星遙測影像應用領域上佔有一席國際領先地位。

計畫主持人吳岸明博士常會以IPS的研發成績為例,鼓勵大家:「只要對台灣有用,對全世界就有用,這就是台灣精神的具體落實!」

他這麼介紹福衛二號