2. Preliminary orbit

Three observations are enough to define a Keplerian orbit. This preliminary orbit is used to predict the target's trajectory for re-observation. In this section, we present methods of determination based on positions or directions.

2.1 Position measurement

Once the sensor-target distance has been measured, the target's position relative to the attractor center is known (16) . Three coplanar positions ${\vec{r}}_{1}, {\vec{r}}_{2},$

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource. Click here to request your free trial access!

Already subscribed? Log in!

Ongoing reading
Preliminary orbit

Previous
page Comments

Orbit estimation

Article included in this offer

"Aerospace systems"

( 77 articles )

Complete knowledge base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

View offer details

Bibliography

(1) - BATTIN (R.) - An Introduction to the mathematics and methods of astrodynamics. - AIAA (1999).
(2) - BRYSON (A.E.), HO (Y.-C.) - Applied optimal control. - Hemisphere Publishing Corporation (1975)....

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource. Click here to request your free trial access!

Already subscribed? Log in!