同步卫星E/W轨道控制盒划分策略

对于当代同步轨道通信卫星来说,星载设备寿命一般都高于星载燃料使用寿命,因此卫星设计寿命都是以星载燃料消耗殆尽为依据的。卫星轨道保持不仅是卫星测控任务的重要工作之一,同时也是星载燃料消耗的主要途径。文中从卫星平经度漂移量、测站定轨精度、星载推进器推力误差、卫星南北机动对东西方向耦合等多方面探讨同步轨道通信卫星E/W轨道保持策略,介绍一种细化轨道控制区间、估算偏心率控制圆半径范围的方法。

A Strategy for GO Satellite to Allocate the Region in E/W Control Box

For up-to-date satellites,usually the life of on board devices is longer than the life of fuel usage.So the design life of satellite is based on the consumption of fuel normally.The maneuver is not only an important task for satellite operation,but also the main way to use the fuel.A strategy to allocate the region in E/W control box elaborately is introduced in this paper with the consideration of the mean longitude drift,the impact of thrust error,orbit determination uncertainties,the effect of cross-coupling between the N/S corrections and the E/W motion.Furthermore a method to estimate the radius of controlled eccentricity is given.