is it possible to launch satelite whìch rotates just above kathmandu?
Yes, it is possible to launch a satellite that orbits just above Kathmandu. To achieve this, the satellite should be placed in a specific type of orbit called a geostationary orbit (GEO).
A geostationary orbit is a circular orbit around the Earth's equator at an altitude of approximately 35,786 kilometers (22,236 miles). In this orbit, the satellite's speed matches the Earth's rotation speed, making it appear stationary from a fixed point on the Earth's surface. This means that if a satellite is placed in a geostationary orbit directly above Kathmandu, it will appear to be fixed in the sky from that location.
To launch a satellite into a geostationary orbit above Kathmandu, the following steps can be considered:
1. Determine the target location: Identify the specific coordinates of Kathmandu (latitude and longitude) to calculate the desired orbit parameters accurately.
2. Calculate orbital parameters: Use mathematical formulas and simulations to determine the appropriate altitude, inclination, and velocity required to achieve a geostationary orbit above Kathmandu.
3. Launch vehicle selection: Choose a launch vehicle capable of delivering the satellite's payload to the desired orbit. Usually, large rockets like the Ariane 5, Falcon 9, or GSLV Mk III are used for this purpose due to their high payload capacity.
4. Launch and ascent phase: The satellite is launched into space and follows a trajectory determined by the launch vehicle. The ascent phase involves multiple stages, with each stage burning fuel and separating after its propellant is depleted.
5. Transfer orbit insertion: The launch vehicle will insert the satellite into an initial elliptical orbit called a transfer orbit. This orbit has a low point (perigee) and a high point (apogee).
6. Orbit circularization: Once in the transfer orbit, the satellite's onboard propulsion system is used to perform a series of engine burns to raise the perigee until it matches the altitude of a geostationary orbit. This circularizes the orbit, making it nearly circular.
7. Stationkeeping: Once the satellite is in the correct orbit, it needs to be continuously monitored and controlled to maintain its position and orientation. This is done by adjusting the satellite's thrusters to counteract any perturbing forces like gravitational effects or atmospheric drag.
By following these steps, it is possible to launch a satellite that rotates just above Kathmandu in a geostationary orbit.