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Artificial Satellites
Artificial Satellites are objects launched from earth to orbit earth or other planets. Satellites are used for communication, remote sensing, weather forecasting, and other purposes. This category is for questions about satellites in general or specific satellites.
1,932 Questions
How does satellite operates through the use of gravity?
Satellites operate through the use of gravity because the force of gravity on the satellite results in circular motion around the earth or any other celestial body, and if that force was too big it would cause the satellite to come crashing down and if it were too small the satellite would just go flying off into space
How can a shuttle be used to repair satellites?
Though now retired, the space shuttle was able to 'capture' satellites for repair and replace then in their correct orbit.
Mainly they told its builders that "I'm still up here, and still working fine".
As it was fairly easy to tune in to them it was also a bragging point for the rest of the world, the builders saying "see what we can do".
Who were the designers of sputnik 1?
The chief constructor of Sputnik 1 at OKB-1 was M.S.Khomyakov. The satellite was a 585 mm (23 in) diameter sphere, assembled from two hemispheres which were hermetically sealed using o-rings and connected using 36 bolts. The hemispheres, covered with a highly polished 1 mm-thick heat shield made of aluminium-magnesium-titanium AMG6T ("AMG" is an abbreviation for "aluminium-magnesium" and "T" stands for "titanium", the alloy contains 6% of magnesium and 0.2% of titanium) alloy, were 2 mm-thick. The satellite carried two antennas designed by the Antenna Laboratory of OKB-1 led by M.V.Krayushkin.Each antenna was made up of two whip-like parts: 2.4 and 2.9 metres (7.9 and 9.5 ft) in length, and had an almost spherical radiation pattern,so that the satellite beeps were transmitted with equal power in all directions; making reception of the transmitted signal independent of the satellite's rotation. The whip-like pairs of antennas resembled four long "whiskers" pointing to one side, at equal 35 degrees angles with the longitudinal axis of the satellite.
The power supply, with a mass of 51 kg (110 lb),was in the shape of an octahedral nut with the radio transmitter in its hole. It consisted of three silver-zinc batteries, developed at the All-Union Research Institute of Current Sources (VNIIT) under the leadership of N. S. Lidorenko. Two of them powered the radio transmitter and one powered the temperature regulation system. They were expected to fade out in two weeks, but ended up working for 22 days. The power supply was turned on automatically at the moment of the satellite's separation from the second stage of the rocket.
The satellite had a one-watt, 3.5 kg (7.7 lb) radio transmitting unit inside, developed by V. I. Lappo from NII-885, that worked on two frequencies, 20.005 and 40.002 MHz. Signals on the first frequency were transmitted in 0.3 sec pulses (under normal temperature and pressure conditions on-board), with pauses of the same duration filled by pulses on the second frequency. Analysis of the radio signals was used to gather information about the electron density of the ionosphere. Temperature and pressure were encoded in the duration of radio beeps, which additionally indicated that the satellite had not been punctured by a meteorite. A temperature regulation system contained a fan, a dual thermal switch, and a control thermal switch. If the temperature inside the satellite exceeded 36 °C (97 °F) the fan was turned on and when it fell below 20 °C (68 °F) the fan was turned off by the dual thermal switch. If the temperature exceeded 50 °C (122 °F) or fell below 0 °C (32 °F), another control thermal switch was activated, changing the duration of the radio signal pulses. Sputnik 1 was filled with dry nitrogen, pressurized to 1.3 atm.For the pressure control the satellite had a barometric switch, activated when the pressure inside the satellite fell below 0.35 kg/cm2 (5.0 psi), changing the duration of radio signal impulse.
While attached to the rocket, Sputnik 1 was protected by a cone-shaped payload fairing, with a height of 80 cm (31.5 in) and an aperture of 48 degrees.The fairing separated from both Sputnik 1 and the rocket at the same time when the satellite was ejected.Tests of the satellite were conducted at OKB-1 under the leadership of O. G. Ivanovsky. Sputnik 1 was launched by an R-7 rocket on 4 October 1957. It burned up upon re-entry on 4 January 1958.
A lander is a space vehicle that is designed to land on other celestial body especially the Moon and the other planet.
What happened to Sputnik 1 3 months after orbit in space?
Sputnik 1 re-entered Earth's atmosphere and burned up after 3 months in orbit, on January 4, 1958. It lasted in space for a total of 92 days, transmitting data on radio frequencies back to Earth during its mission.
How do you avoid detection of spy satellites?
Whenever there off for a moment jump and get off to another one as fast as you can. Repeat
What is the time line beginning with sputnik and end with project Apollo?
don't care about school! Don't give a f*** about it babe. hmu to anyone reading this though. 817-369-856 let me see those t*ts.
national defence eduction Act
Was the mission of sputnik accomplished?
Yes, the mission of Sputnik was accomplished. Sputnik 1 was the world's first artificial satellite, launched by the Soviet Union in 1957. Its successful launch marked the beginning of the space age and the start of space exploration.
How many GPS Satellites does the US Deptartment of Defense have?
There are currently 30 healthy GPS satellites in orbit.
the National Defense Education Act
Why does g.p.s. need 4 satellites?
GPS needs signals from at least 4 satellites to accurately calculate a 3D position on Earth. By receiving signals from multiple satellites, the GPS device can triangulate its position using the known positions of the satellites. This allows for highly accurate location determination.
Why was the sputnik spherical?
The spherical shape of Sputnik made it more aerodynamic and stable when launched into space. This design helped in reducing air resistance during launch and allowed for better weight distribution of internal components.
The space shuttle helped us to be able to go into space and find out lots of info. we did not know. Before we had the space shuttle all we had were telescopes. Telescopes were good but all that they gave us were a picture and then we had to estimate how far away things in the universe were from other things were in the universe. Now that we have the space shuttle we are able to see things that we may not have seen with the telescope. We are also able to see how far away things are from other things
How is the moon a natural satellite?
Its not man made anything that orbits another body is a satellite, so the earth is a natural satellite of the Sun
What is the radio frequency range of inmarsat satellite?
System Specifications:
1. Tx Frequency;
1626.5-1646.5MHz
2. EIRPG33/25dBW
3. Rx Frequency;
1525.0-1545.0MHz
4. Channel Spacing;
20kHz
What was the first name on earth?
If you are considering it in biblical terms, then it would be Adam.
By popularity, I believe it was Michael.
