ජාත්‍යන්තර අභ්‍යවකාශ මධ්‍යස්ථානය
From Wikipedia
| ජාත්‍යන්තර අභ්‍යවකාශ මධ්‍යස්ථානය | ||||
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| ISS Statistics | ||||
| Crew: | 2 | As of March 5, 2006 |
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| Perigee: | 352.8 km | " | ||
| Apogee: | 354.2 km | " | ||
| Orbital period: | 91.61 minutes | " | ||
| Inclination: | 51.64 degrees | " | ||
| Orbits per day: | 15.72 | " | ||
| Days in orbit: | 2,473 | August 28, 2005 | ||
| Days occupied: | 1,759 | " | ||
| Total orbits: | 38,694 | " | ||
| Distance traveled: | ≈1,400,000,000 km | June 17, 2005 | ||
| Average speed: | 27,685.7 km/h | " | ||
| Mass: | 183,283 kg | August 28, 2005 | ||
| Living volume: | 425 m³ | " | ||
| ජාත්‍යන්තර අභ්‍යවකාශ මධ්‍යස්ථානය | ||||
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| ISS Diagram | ||||
ජාත්‍යන්තර අභ්‍යවකාශ මධ්‍යස්ථානය අභ්‍යවකාශ ආයතන පහක (5) හවුල් ව්‍යාපෘතියකි; ඒ නාසා ආයතනය (ඇමෙරිකා එකසත් ජනපදය), රුසියානු අභ්‍යවකාශ ඒජන්සිය (රුසියානු සමූහාණ්ඩුව), Japan Aerospace Exploration Agency (ජපානය), කැනේඩියානු අභ්‍යවකාශ ඒජන්සිය (කැනඩාව) සහ යුරෝපීය අභ්‍යවකාශ ඒජන්සිය (යුරෝපය) යන ආයතන පහයි.
The Brazilian Space Agency (Brazil) participates through a separate contract with NASA. The Italian Space Agency similarly has separate contracts for various activities not done in the framework of ESA ISS works (where Italy also fully participates).
The space station is located in orbit around the Earth at an altitude of approximately 360 km (220 miles), a type of orbit usually termed low Earth orbit (The actual height varies over time by several kilometres due to atmospheric drag and reboosts [2]). It orbits Earth in a period of about 92 minutes; by June 2005 it had completed more than 37,500 orbits since launch of the Zarya module on November 20, 1998.
In many ways the ISS represents a merger of previously planned independent space stations: Russia's Mir 2, United States' Space Station Freedom and the planned European Columbus and Japanese Experiment Module.
Due to the ISS, there is a permanent human presence in space, as there have always been at least two people on board ISS since the first permanent crew entered the ISS on November 2, 2000. It is serviced primarily by the Soyuz, Progress spacecraft units and Space Shuttle. The ISS is currently still under construction with a projected completion date of 2010. At present, the station has a capacity for a crew of three. So far, all permanent crewmembers have come from the Russian or United States space programs. The ISS has however been visited by astronauts from a large number of other countries and was also the destination of the first three space tourists.
[edit] ඉතිහාසය
