A geostationary Earth orbit satellite model using Easy Java Simulation

Analytical method for determining the statistics of interference between non-geostationary-satellite orbit fixed-satellite service systems and other non-geostationary-satellite orbit fixed-satellite service systems or geostationary-satellite orbit fixed-satellite service networks

Dynamics of Spacecraft Plume/Magnetosphere Interactions in Geostationary Earth Orbit

Detailed direct simulation Monte Carlo/Particle in Cell simulations involving the interaction of a hydrazine chemical rocket plume with the rarefied ambient magnetosphere are presented for steady thruster firings in geostationary Earth orbit (GEO). The hydrazine chemical rocket plume is modeled as a neutral gas mixture with thruster exit conditions corresponding to a mass flow rate of 5.0 × 10−...

Optimisation of Antenna Gain for Earth Coverage from Geostationary Satellite

1 SCHMID, H.: 'Electronic analog/digital conversions' (Van Nostrand Reinhold, 1970), p. 296 2 EDSON, j . o., and HEMMING, H. H.: 'Broadband codecs for an experimental 224M6/5 PCM Terminal', Bell Syst. Tech. J., 1965, pp. 1887-1940 3 RAKOVICH, D., and DJORDJEVICH, B. Z.: 'A wide-range voltage-to-time converter', IEEE Trans., 1973, IM-22, pp. 162-165 4 HART, B. L., and BARKER, R. W. J.: 'A precis...

Coarse Initial Orbit Determination for a Geostationary Satellite Using Single-Epoch GPS Measurements

A practical algorithm is proposed for determining the orbit of a geostationary orbit (GEO) satellite using single-epoch measurements from a Global Positioning System (GPS) receiver under the sparse visibility of the GPS satellites. The algorithm uses three components of a state vector to determine the satellite's state, even when it is impossible to apply the classical single-point solutions (S...

Passive Aerodynamic Stabilization of a Low Earth Orbit Satellite

This paper discusses the influence of aerodynamic drag torque on the dynamics of a satellite in a very low altitude orbit. The larger atmospheric density in low altitude earth orbits results in significant aerodynamic drag torques acting on the satellite. With a conventional satellite design this may result in instability. This paper shows how the instability can be avoided, and how the aerodyn...