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Orbits
Given the immense size of the SunWire satellites, it is necessary to make multiple launches to carry all of the satellite components into space.
In an effort to reduce launch expense, the satellite is staged and assembled in Low Earth Orbit (LEO).
Key LEO Orbital Parameters - Staging and Assembly
Altitude
Velocity
Period
380 km
7.43525 km/s
101.6
Once the satellite is built, we will use ion drives and a Hohmann Transfer to move the satellite to Geostationary Earth Orbit (GEO).
Key GEO Orbital Parameters - Final Orbit
Altitude
Velocity
Period
35,286 km
3.07815 km/s
1431 min. (1 sidereal day)
The GTO Hohmann transfer uses solar-powered ion drives to move the SunWire satellites from LEO to GEO. The animation below simulates the transfer process.
After the transfer period, the satellite arrives at its final destination in GEO. This orbit was chosen primarily because of its stability and its impact on other engineering aspects such as communications and power transfer. Because the satellite is geostationary, there is no tracking required.
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