Title :
The application of differential VLBI to planetary approach navigation
Author_Institution :
Inst. of Space & Astronaut. Sci., Kanagawa, Japan
Abstract :
The development of multistation tracking techniques has resulted in improved navigation (orbit determination) accuracies. Differential very long baseline interferometry (VLBI), which involves performing measurements of a spacecraft and nearby the quasar and differencing, potentially offers at least an order of magnitude improvement over data types currently implemented. A simplified model on conic motion is developed for predicting the orbit determination error given Delta-VLBI measurement error. This simplified model is applied to the large outer planets for an overall assessment of the effectiveness of Delta-VLBI orbit determination. For Venus the result is encouraging.
Keywords :
Venus; quasars; radio tracking; radioastronomical techniques; radionavigation; radiowave interferometry; space vehicles; Venus; delta VLBI measurement error; differential VLBI; differential very long baseline interferometry; multistation tracking; orbit determination; planetary approach navigation; quasar; spacecraft;
Conference_Titel :
SICE 2003 Annual Conference
Conference_Location :
Fukui, Japan
Print_ISBN :
0-7803-8352-4
