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Mathematical Problems in Engineering
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Mathematical Problems in Engineering
/
2008
/
Article
/
Fig 2
/
Research Article
A First-Order Analytical Theory for Optimal Low-Thrust Limited-Power Transfers between Arbitrary Elliptical Coplanar Orbits
Figure 2
The vectors
𝛿
𝐫
=
𝛿
𝜉
𝐞
𝐫
+
𝛿
𝜂
𝐞
𝐬
,
𝛿
𝐯
=
𝛿
𝑢
𝐞
𝐫
+
𝛿
𝑣
𝐞
𝐬
.
(
3
.
1
1
)
and
𝑎
.