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Is there satellites that orbit mars if so how many?
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How many satellites on average within half an hour would be visible from one point?
It would depend on the time. We can't see satellites in the daytime, because the sky is so bright that it washes out the view of small satellites. (The early "Echo" balloon satellites were a short-lived exception. Enormous mylar balloons, inflated in orbit, acted as passive reflectors of radio signals AND sunlight; if you knew where to look, they were possible to see in the daytime.) In the middle of the night, the satellites that you might hope to see are in the Earth's shadow themselves, and cannot be seen. The Iridium "satellite phone" satellites orbit in pretty high orbits, however, and are often in the sunlight. And when the solar power panels are oriented "just right", it's possible to see an "Iridium flare" for just a few seconds; again, if you know just where and when to look! But most low-Earth-orbit satellites, such as the International Space Station, are visible for only about an hour after sunset or for an hour before dawn. So, "on average", none. Sometimes several.
The 66 low-orbit satellites in the Iridium project are divided into six necklaces around the earth At the altitude they are using the period is 90 minutes What is the average interval for handoffs for?
66/6=11 satellites/necklace Time period is 90 mins so each time it goes as 90*60/11=491 seconds -------------------------------------- Correction: One orbit is close to 100 minutes, so the time between one satellite and the next is 9 minutes. This is only one factor that determines when a call is handed off from one satellite to another. Other factors include the location of the phone relative to the satellites and obstructions such as buildings and mountains. Several average handoff intervals have been published, but the actual interval is proprietary information of Iridium.
How does man made satellites maintain their orbit?
The satellites are usually placed so in an orbit high enough so that they don't lose much movement energy due to atmospheric friction.
Does betelgeuse have any satellites?
Betelgeuse is a star, not a planet, so it does not have any satellites. Satellites, also known as moons, typically orbit planets, not stars.
Do all satellites orbit the same direction?
No, all satellites do not orbit Earth at the same altitude. An good overview of this can be found on http://www.idirect.net/Company/Satellite-Basics/How-Satellite-Works.aspx. This overview reviews Low Earth Orbit, Medium Earth Orbit and Geostationary Orbits.
In space how can our satellites travel so fast and look so fragile but not be damaged by drag or wind?
Satellites orbit in the thermosphere or exosphere where there is no wind and drag is negligible.
What force keeps a satilite in orbit?
yo mamas so fat she creates her own gravity, thus holding satellites in orbit
Why don't satellites orbit around mercury?
because it is too hot because it is so close to the sun
How do satellites revolve around the earth?
With great velocity; which counteracts the gravitational attraction, so they stay in orbit.
Why are satellites high up above the earth?
Because satellites can't stay in orbit if they're moving through air, so they have to be high enough where there's no air.
How many satellites did India sent to the space?
72 + 35 (foreign) satellites were put into orbit so far (till November 2013).
