xMonty said:Hi,
I know what geo stationary orbit is, my question is what does it mean when they say
satellite is at "83.0°E", don't you need more coordinates to find it??
sophiecentaur said:For a Geostationary orbit, the satellite must be in orbit around the Equator (so it will appear to be fixed in the sky. Its orbital distance is also fixed, of course. All that remains is to know at which angular position, around the Equator that it's stationed - hence just one number is needed.
sophiecentaur said:It means Longitude 083E. Vertically above that point on the Earth's Equator.
Google Maps have a satellite finder facility (search for it - it's there) in which you put your position (Lat / Long) and the satellite position (083). It will tell you the bearing and elevation needed to point at the satellite.
You can check by looking at other nearby dishes if you don't feel too confident.
sophiecentaur said:Could be a really handy App.
I searched "satellite finder" but I could find only sites that would do it for you - bummer.
I did a nav course about 40 years ago (pre-GPS) and I had some notes until recently on how to determine your position from star sightings. This is the same geometry, pretty much. It isn't simple but I'm sure there are approximations which would suit a mobile phone app accuracy.
Stop press. I found this link at the end of a search. I think it may be just what you need but you'll have to dig around in there. Of course the formulae are much easier than for astro nav because you don't need to consider TIME haha.
A Geo Stationary Orbit is a circular orbit around the Earth at an altitude of approximately 36,000 kilometers. This orbit is directly above the Earth's equator and has an inclination of 0 degrees, meaning it is in line with the Earth's rotation. Satellites placed in this orbit appear to be stationary from a fixed point on Earth, making them ideal for communication and broadcasting purposes.
The "83.0°E Satellite Location" refers to the longitude of the satellite's position in the Geo Stationary Orbit. This means that the satellite is located above the Earth at a point where the longitude is 83.0 degrees east.
83.0°E is a popular location for satellites because it is directly above the Indian Ocean and provides coverage to a large portion of Asia, including India, China, and parts of Southeast Asia. It also allows for easy communication between the eastern and western hemispheres.
To place a satellite in a Geo Stationary Orbit at 83.0°E, it must first be launched into orbit with a rocket. Once in space, the satellite will use its own propulsion system to adjust its orbit and position itself at 83.0°E. This requires precise calculations and adjustments to ensure the satellite remains in the desired orbit.
There are several advantages to having satellites in a Geo Stationary Orbit at 83.0°E. These include providing continuous coverage to a large geographic area, allowing for real-time communication and broadcasting, and reducing the need for multiple satellites to cover the same area. Additionally, the stationary position of the satellite allows for easier tracking and communication compared to satellites in other types of orbits.