methodsofrapidorbitforecastingaftermaneuversforgeostationarysatellites

	methodsofrapidorbitforecastingaftermaneuversforgeostationarysatellites
	YANG XuHai1 ; LI ZhiGang1 ; FENG ChuGang 1; GUO Ji1 ; SHI HuLi 2; AI GuoXiang 2; WU FengLei 3; QIAO RongChuan1
	2009
发表期刊	scienceinchinaseriesgphysicsmechanicsastronomy
ISSN	1672-1799
卷号	52 期号:3 页码:333
摘要	A geostationary (GEO) satellite may serve as a navigation satellite,but there is a problem that maneuvers frequently occur and the forces are difficult to model.Based on the technique of determining setellite orbits by transfer,a predicted orbit with high accuracy may be achieved by the method of statistical orbit determination in case of no maneuver force.The predicted orbit will soon be invalid after the maneuver starts,and it takes a long time to get a valid orbit after the maneuver ends.In order to improve ephemeris usability,the method of rapid orbit forecasting after maneuvers is studied.First,GEO satellite movement is analyzed in case of maneuvers based on the observation from the orbit measurement system by transfer.Then when a GEO satellite is in the free status just after maneuvers,the short arc observation is used to forecast the orbit.It is assumed that the common system bias and biases of each station are constant,which can be obtained from orbit determination with long arc observations.In this way,only 6 orbit elements would be solved by the method of statistical orbit determination,and the ephemeris with high accuracy may be soon obtained.Actual orbit forecasting with short arc observation for SlNOSAT-1 satellite shows that,with the tracking network available,the precision of the predicted orbit (RMS of O-C) can reach about 5 m with 15 min arc observation,and about 3 m with 30 min arc observation.
语种	英语
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/9724
专题	高精度时间传递与精密测定轨研究室
作者单位	1.中国科学院国家授时中心 2.中国科学院南京天文光学技术研究所 3.中国科学院大学
第一作者单位	中国科学院国家授时中心
推荐引用方式 GB/T 7714	YANG XuHai,LI ZhiGang,FENG ChuGang,et al. methodsofrapidorbitforecastingaftermaneuversforgeostationarysatellites[J]. scienceinchinaseriesgphysicsmechanicsastronomy,2009,52(3):333.
APA	YANG XuHai.,LI ZhiGang.,FENG ChuGang.,GUO Ji.,SHI HuLi.,...&QIAO RongChuan.(2009).methodsofrapidorbitforecastingaftermaneuversforgeostationarysatellites.scienceinchinaseriesgphysicsmechanicsastronomy,52(3),333.
MLA	YANG XuHai,et al."methodsofrapidorbitforecastingaftermaneuversforgeostationarysatellites".scienceinchinaseriesgphysicsmechanicsastronomy 52.3(2009):333.