Open AccessNavigazione spaziale
Author(s) -
P. PERNAZZA
Publication year - 2011
Publication title -
annals of geophysics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 60
eISSN - 2037-416X
pISSN - 1593-5213
DOI - 10.4401/ag-5241
Subject(s) - transponder (aeronautics) , computer science , orbit (dynamics) , geodesy , telecommunications , geology , remote sensing , geography , meteorology , aerospace engineering , engineering
Lì rie fi y are discussed the priucipal aspects of " space
navigation ". which can be divided in three phases:
circuinnavigation of the Earth (parking orbit or departure);
middle or interplanatery navigation;
approach and landing 011 the pia net.
The radio-assistence from the Earth, with transponder, may play the
principal iole for the first two phases, while for the last phase, the astronauta
must rely 011 the self-contained navigation: electronics and observation.
The energy reserve reduce» the general needs of space navigation
navigation ". which can be divided in three phases:
circuinnavigation of the Earth (parking orbit or departure);
middle or interplanatery navigation;
approach and landing 011 the pia net.
The radio-assistence from the Earth, with transponder, may play the
principal iole for the first two phases, while for the last phase, the astronauta
must rely 011 the self-contained navigation: electronics and observation.
The energy reserve reduce» the general needs of space navigation