【正文】
度為 2/130 ?????????saGMnn?nnn ??? 0中英文日?qǐng)?bào)導(dǎo)航站 ?計(jì)算歸化時(shí)間 首先對(duì)觀測(cè)時(shí)刻 t做衛(wèi)星鐘差改正 然后將改正后觀測(cè)時(shí)刻 t’歸化到 GPS時(shí)間系統(tǒng)中 注意 不同 2210 )()( ococ ttattaaTTtt??????????oettt ????ocoe tt ,中英文日?qǐng)?bào)導(dǎo)航站 ?計(jì)算觀測(cè)時(shí)刻 t的平近點(diǎn)角 Ms和偏近點(diǎn)角 Es ?計(jì)算觀測(cè)時(shí)刻的真近點(diǎn)角 fs tnMM S ??? 0SSS EeME si n??)co ss i n1ar ct an ( 2SSSSS eEEef???中英文日?qǐng)?bào)導(dǎo)航站 ?升交距角: u0=?s+fs ?攝動(dòng)改正項(xiàng) 、衛(wèi)星的地心距離及軌道傾角 0000002c o s2s i n2c o s2s i n2c o s2s i nuCuCiuCuCruCuCuicisrcrsucus?????????)()cos1(00oesssttiiiirEearuuu?????????????中英文日?qǐng)?bào)導(dǎo)航站 ( x,y,z) (這里的 X軸指向了升交點(diǎn)) )/(10292 11 ))((5000sr adttt ee???????????????????????????????????????zyxiRRZYX)()( 13?????????????????????iiiiiiiRRc oss i n0c osc osc osc oss i ns i ns i nc oss i nc os)()( 13?????????????????????0s i nc osururzyx中英文日?qǐng)?bào)導(dǎo)航站 ??????????????????????????????????????11001)()()()(1212ppppppppC T SyxyxyRxRZYXyRxRZYX地,最后得到在協(xié)議地球坐標(biāo)系中的空間直角坐標(biāo) ?????????????????????ZYXG A STRZYX)(3地?????????? ??1000c o ss i n0s i nc o s)(3 G A STG A STG A STG A STG A STR