A hyperbolic orbit is expanded in terms of F analogous to the eccentric anomaly of an elliptical orbit: τ p s i n q υ a n d τ p c o s q υ are expressed in terms of F. The true anomaly υ is expressed in terms of F, and F in terms of υ .

Abstract
Ⅰ. TRANSFORMATION OF VARIABLES
Ⅱ. EXPANSION OF υ IN TERMS OF F
Ⅲ. EXPANSION OF F IN TERMS OF υ
Ⅳ. EXPANSIONS OF rpcosqv AND rpsinqv IN TERMS OF F
Reference

• Byung-Ho Ahn(Department of Earth Science, Kyungpook National University)
• See-Woo Lee(Department of Earth Science, Kyungpook National University)