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6.3 Rendezvous

6.3 Rendezvous. Christopher James 3/30/2007 Physics 280. Coplanar Rendezvous.

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6.3 Rendezvous

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  1. 6.3 Rendezvous Christopher James 3/30/2007 Physics 280

  2. Coplanar Rendezvous • The next case is that of coplanar rendezvous. In this situation, a Hohmann transfer is most often the minimum energy transfer. For transfers that require significantly less time than allowable with a Hohmann transfer, a non-tangential burn can be implemented at the cost of extra DV. The DV needed for a circular Hohmann transfer is found using the following equations………

  3. COPLANAR RENDEZVOUS

  4. Co-orbital Rendezvous

  5. Hohmann Transfer • Assumptions: • Initial and final orbits are circular and coplanar • Engine burn is instantaneous • Approach: • Doubly tangent transfer ellipse: Minimum speed change – minimum burn – minimum fuel – minimum weight

  6. Transfer Time

  7. The basic equations for rendezvous and proximity operations are well understood. The easiest is the co-orbital circular rendezvous scenario. The DV needed for rendezvous is dependent on the allowable time and is found using the following equations.

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