Direct and indirect solar radiation effects acting on LAGEOS satellite: Some refinements

摘要: Abstract The LAGEOS tracking data show that the residuals on along track acceleration have a secular drag of about −3.4×10 −12 m/sec 2 and signatures whose periods are represented by linear combinations longitude node Sun. direct solar radiation model is rediscussed when going out from or entering eclipse. In fact specular asymmetries eclipse figure with respect to plane which perpendicular orbit including Sun-Earth direction due Earth's revolution able justify peaks Along Track pico-m/sec order very interesting behaviours radial Out Plane directions. Furthermore paper refines modelling Yarkovsky-Schach effect at boundaries eclipses performes, exploiting phases shadow too, sort least square fitting where spin cosine directors thermal inertia parameters be recovered.