2006-12-30 21:45:44 · 7 answers · asked by archanpagedar 1 in Science & Mathematics ➔ Astronomy & Space
A very small error in the path adds up to a big deviation after a long time. So there are small rocket motors placed around the satellite to nudge it back onto the correct path.
2006-12-30 21:51:23 · answer #1 · answered by Anonymous · 0⤊ 0⤋
For any object to remain in the same orbit, it is required to move at an optimum angular velocity, which means, at a given interval of time it has to travel a specified arc length.
For example, when u try to rotate an object tied with a rope, it starts rising in its height as you rotate faster and and faster. If u reduce the speed of rotation, the object starts lowering its level.
Same way, when a satellite is made to move at an optimum angular velocity around the earth, it continues to sustain its distance from the earth.
But, after some time, due to cosmic drag and the miniscule gravitational pull on the satellite starts pulling the satellite towards the earth, resulting in deviation from its orbit.
If the small rockets on the satellite are not fired at appropriate time and angle, the satellite will nose dive towards the earth and start disintegrating as it enters the earths atmosphere.
If the course correcting rockets are wrongly fired, the satellite may go out of the trajectory in to the space and will be lost for ever.
Hence, the course correction rockets are used in satellites to correct the deviation of its orbit.
2006-12-30 23:06:15 · answer #2 · answered by Shooting stars 3 · 1⤊ 1⤋
It is a very fine line between being in orbit and having a degrading orbit (crash back to earth) and an expanding orbit (lost into outerspace). As time passes, satellites do come into contact with debree and cosmic dust and cosmic rays which very slightly may alter its set orbit.
To counteract this, usually a small engine is included as part of the satellite to give it a "push in the right direction" to correct for these factors.
2006-12-30 21:53:36 · answer #3 · answered by beanie_boy_007 3 · 0⤊ 0⤋
for satellite to roatate i a specified orbit a velocity called "orbital velocity is compulsory.If there is small deviation from the orbit a small variation in the velocity of satellite would do.if there is very great deviation motors fixed to the satellite wud guide it back to its original orbit.
2006-12-30 22:24:52 · answer #4 · answered by parameswar k 2 · 0⤊ 0⤋
i think by orbital maneovering techiniques from control base on ground of that satellite if one can apply.
2007-01-01 00:14:25 · answer #5 · answered by Space Sciences Academy 1 · 0⤊ 0⤋
because the actual satellite is floating in outer space. It moves...
and what he said.
2006-12-30 21:51:23 · answer #6 · answered by stringer_G 3 · 0⤊ 1⤋
"Rule Of Gravitation"
2006-12-30 21:59:27 · answer #7 · answered by manish a 1 · 0⤊ 2⤋