A Conjoint Analysis of Propellant Budget and Maneuver Life for a Communication Satellite

Maneuvers require velocity augmentation to control a satellite at the defined orbit. The provides achieving geostationary orbit, compensating orbital perturbation, orbit dispersion correction, and any other maneuver's operations for communication satellite. All maneuvers propellant consumption must be taken into account in budget successful mission management. In this study, straightforward method was proposed calculate maneuver life or associated general purposes. enough accuracy planning. However, accurate end of estimation, especially last three months is vitally important depends on many factors. According performance requirement procurement's standard, are calculated based worst-case adverse three-sigma. calculations include allocations inefficiencies, uncertainties, dispersions resulting from thruster firings, residuals, selected thrusting, strategies' performance. High remaining estimation necessary operation decommissioning. cost early deorbit because misestimation millions dollars. Accurate analysis can performed different methods.The most common methods pressure, volume, temperature (PVT), bookkeeping (BK), thermal gauging (TPG). shows that propagation uncertainties related system design, tank fill ratio, load accuracy, inefficiency, pressure sensors, transducers, telemetry resolution, error equipment test data. Comparing methods, PVT between ±27.81 kg ±38.93 kg, depending size accuracy. BK currently best highest ±9.83 ±13.76 kg. TPG ±10.52 ±14.73 some cases. operators request ±1 extend lifetime reduce costs. manufacturers should optimize propulsiıon attitude subsystem design manufacturing, including management device performance, applied sensors reliability expansion over life.