After some years of observations of the geostationary ring, the Group of Astrodynamics of the University of Rome “La Sapienza” (GAUSS) performed in 2005 a test optical campaign addressed to low Earth orbit satellites orbit determination. The objects Cosmos 1833 and Cosmos 2227 R/B (rocket body), chosen among the brightest, have been photographed by Collepardo Automatic Telescope equipped with a 40 cm Ritchey-Chrétien optical tube with focal reducer and a STL-1001E 1k×1k CCD (Charge Coupled Device). The field of view (FOV) exceeded 1°. Various orbit determination methods, well known in the literature, have been studied in order to compare their capabilities: orbit determination based on the null eccentricity hypothesis, classical methods for the state determination from angles only and real-time filtering for updating the elements were tested and their results compared. In all cases a priori information were not exploited.
Optical campaign for low Earth orbit satellites orbit determination
PIERGENTILI, FABRIZIO;
2005
Abstract
After some years of observations of the geostationary ring, the Group of Astrodynamics of the University of Rome “La Sapienza” (GAUSS) performed in 2005 a test optical campaign addressed to low Earth orbit satellites orbit determination. The objects Cosmos 1833 and Cosmos 2227 R/B (rocket body), chosen among the brightest, have been photographed by Collepardo Automatic Telescope equipped with a 40 cm Ritchey-Chrétien optical tube with focal reducer and a STL-1001E 1k×1k CCD (Charge Coupled Device). The field of view (FOV) exceeded 1°. Various orbit determination methods, well known in the literature, have been studied in order to compare their capabilities: orbit determination based on the null eccentricity hypothesis, classical methods for the state determination from angles only and real-time filtering for updating the elements were tested and their results compared. In all cases a priori information were not exploited.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
