downlink becouse frequncy / power low compare to uplink
uplinks
Satellite phones and internet uplinks for video calls, they have really good reception.
Apogee is the point at which a satellite in an elliptical orbit is At its apogee, the satellite travels slower than at any other point in its orbit.
uplinks
The faster satellite appears to overtake another satellite when observed from Earth. This is because the faster satellite covers a greater distance in the same amount of time, causing it to catch up to and pass the slower satellite.
Yes in most cases is it. Sometimes cable is even slower.
That is the exact questin i had!!
The linear velocity of a satellite in an elliptical orbit increases as it moves from perigee (closest point to Earth) to apogee (farthest point from Earth) because the gravitational pull is weaker at apogee, causing the satellite to speed up. At perigee, the satellite moves faster due to the stronger gravitational pull from Earth.
The speed of a satellite changes in an elliptical orbit because the satellite moves faster when it is closer to the central body due to gravitational acceleration, and slower when it is farther away. This change in speed is necessary to balance the varying gravitational force experienced by the satellite at different points in its orbit.
The speed is variable; faster while closer to the Earth, and slower further away. But the actual speed varies by the orbital distance.
Satellite internet is generally more expensive than either Cable or DSL and is much slower. If you live in an area with good cell reception, a cellular modem might be a better compromise.
Because most satellites are not 'geostationary'. A geostationary satellite orbits the Earth at the same speed that the Earth spins on its axis - such as the GPS grid, or TV relay satellites. Most satellites travel faster or slower than the Earth spins.