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Wednesday, December 5, 2007

Interesting Fact About The International Space Station

Fun Facts!!


• As of August 8, 2007 , the number of crewmembers and visitors who have traveled to the ISS included 177 different people representing 11 countries.

• Living and working on the ISS is like building one room of a house, moving in a family of three, and asking them to finish building the house while working full time from home.

• As of August 8, 2007 , there have been 64 launches to the ISS (42 Russian flights and 22 US Shuttle flights).

• At Assembly Complete, 80 space flights will have been scheduled to take place using five different types of launch vehicles.

EVA


• As of February 2007: there have been 81 Spacewalks (EVAs) (28 Shuttlebased, 53 ISS-based) totaling 498 hours and 3 minutes.

Mass

• The mass of the ISS currently is 213,843 kg (471,444 lb).

• At Assembly Complete, the ISS will be about four times as large as the Russian space station Mir and about five times as large as the U.S. Skylab.

• At Assembly Complete, the ISS will have a mass of almost 419,600 kg (925,000 lb). That’s the equivalent of more than 330 cars.

• The entire 16.4-m (55-ft) robot arm assembly will be able to lift 99,790 kg (220,000 lb), which is the mass of a Space Shuttle orbiter.

Habitable Volume

Water inside pipe at earth

Water inside the pipe in I.S.S(at microgravity)

• The ISS has about 425 m 3 (15,000 ft 3 ) of habitable volume—more room than a conventional three-bedroom house. There are 9 research racks on board plus 16 system racks and 10 stowage racks.

• At Assembly Complete, more than 120 telephone-booth-size rack facilities will be installed in the ISS for operating the spacecraft systems and research experiments.

• When completely assembled, the ISS will have an internal pressurized volume of 935 m 3 (33,023 ft 3 ), or about 1.5 Boeing 747s, and will be larger than a five-bedroom house.

Physical Dimensions

• A solar array’s wingspan of 73 m (240 ft) is longer than that of a Boeing 777, which is 65 m (212 ft).

• At Assembly Complete, the ISS will measure 110 m (361 ft) end to end.

Electrical Power

• The solar array surface area currently on orbit is 892 m 2 (9,600 ft 2 ).

• At Assembly Complete, 12.9 km (8 mi) of wire will connect the electrical power system.

• Currently, 26 kW of power is generated.

• At Assembly Complete, the solar array surface area is 2,500 m 2 (27,000 ft 2 ), an acre of solar panels.

• At Assembly Complete, there will be a total of 262,400 solar cells.

• At Assembly Complete, a maximum 110 kW of power, including 30 kW of long-term average power for applications, is/will be available.

Meals


• Approximately 3,630 kg of supplies are required to support a crew of three for about 6 months.

• Based on input from ISS crew members, the most popular on-orbit foods are shrimp cocktail, tortillas, barbecue beef brisket, breakfast sausage links, chicken fajitas, vegetable quiche,

macaroni and cheese, candy-coated chocolates, and cherry blueberry cobbler. The favorite beverage to wash it all down? Lemonade.

Crew Hours

• While a year of Space Shuttle operations (seven crew members, 11-day missions, five flights per year) results in 9,240 total crew hours, 1 year of ISS operations—26,280 total crew hours

(three crew, 365 days) — is almost three times that amount.

Environmental Control

• ISS systems recycle about 6.4 kg (14 lb) or 6.42 L (1.7 gal) of crew-expelled air each day. 2.7 kg (6 lb) of that comes from the U.S. segment. The processed water is then used for technical or drinking purposes.

• The ISS travels an equivalent distance to the Moon and back in about a day. That’s equivalent to crossing the North American continent about 135 times every day.

Data Management

• Fifty-two computers will control the systems on the ISS.

• The data transmission rate is 150 Mb per second downlink with simultaneous uplink.

• Currently, 2.8 million lines of software code on the ground will support 1.5 million lines of flight software code, which will double by Assembly Complete.

• In the International Space Station’s U.S. segment alone, 1.5 million lines of flight software code will run on 44 computers communicating via 100 data networks transferring 400,000 signals (e.g., pressure or temperature measurements, valve positions, etc.).

Sources : http://www.angkasawan.com.my/mainatsb/atsb/sanitation.html
http://www.nasa.gov/mission_pages/station/main/

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