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ORBIT10: adding the medium arc to the very short arc method
BibTeX
@MISC{Carpino_orbit10:adding,
author = {Catastini Milani Carpino and G. Catastini and A. Milani and M. Carpino and A. Rossi},
title = {ORBIT10: adding the medium arc to the very short arc method},
year = {}
}
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Abstract
The very short arc (VSA) method is useful to solve for the coordinates and velocities of the SLR stations of a local network (continental scale) with O-C residuals of the level of 1--2 cm. The results deriving from a 7 years data analysis confirm the high quality of this method. However, the VSA method does not allow us to solve for the geopotential coefficients, and therefore cannot be used as such for COGEOS. Moreover it is not robust enough with respect to the systematic observational errors. The Space Mechanics Group has therefore written a new code to be added to the original version of the software package ORBIT10 based on an enlarged arc period. This version of the program can be used to analyse the ETALON data, in the framework of COGEOS, namely to improve the knowledge of the resonant coefficients. In the future we will use it at the data compression stage in order to be able to discard the outlier points (or satellite passes) in a way which is both accurate and ob...
Keyphrases
short arc method medium arc o-c residual high quality new code data compression stage geopotential coefficient enlarged arc period continental scale resonant coefficient systematic observational error space mechanic group original version local network software package orbit10 short arc vsa method slr station etalon data
