Title :
Determination of CE-1´s orbit and EOPs with Δ VLBI observation
Author :
Yan, Wei ; Wei, Erhu ; Liu, Jingnan ; Adam, Jozsef ; Cai, Jianqing
Author_Institution :
Sch. of Geodesy & Geomatics, Wuhan Univ., Wuhan, China
Abstract :
In this paper, a relativistic differential VLBI (ΔVLBI) mathematical model for Chang´e-l(CE-1) Transfer orbit is derived. Based on the model, A VLBI time delay observations are formed by differencing CE-1 time delay observations with a simulated radio source time delay observations. Then the error equation of observations is formed and the unknown parameters including orbit of CE-1 and Earth Orientation Parameters (EOPs) are calculated under least squares adjustment. Finally, the accuracy of each parameter is given.
Keywords :
celestial mechanics; least squares approximations; space vehicles; CE-1 orbit; CE-1 time delay observations; EOP; Earth orientation parameters; VLBI time delay observations; error equation; least squares adjustment; mathematical model; relativistic differential VLBI; simulated radio source time delay observations; transfer orbit; Accuracy; Delay effects; Educational institutions; Mathematical model; Moon; Orbits; Space vehicles; ΔVLBI; Chang´e-1; EOP; Orbit determination;
Conference_Titel :
Electronics, Communications and Control (ICECC), 2011 International Conference on
Conference_Location :
Ningbo
Print_ISBN :
978-1-4577-0320-1
DOI :
10.1109/ICECC.2011.6066680
