Hop MinDV RPO Sequence

The Hop MinDV RPO sequence is a single move that finds the optimal transfer time to minimize Delta-V. This sequence creates a "hop" for the chase satellite from the current position to a new desired relative position using a single maneuver at the beginning. The SNOPT optimizer determines the duration of the sequence in order to minimize the Delta-V.

This sequence does not stop the relative motion at the end. If you want to stop the relative motion at the end of the sequence, use the HopAndStop sequence with the transfer duration determined from this sequence.

The following picture shows a hop from an initial position on the VBar at -1000m to a final position of +500 m on the RBar. In this case, the transfer looks like a partial NMC, where the duration of the minimum Delta-V transfer was 16.25 hours.

Watch the following video to learn more about the RPO sequence on this page.

Sequence parameters

Option	Description
Desired_Radial	Enter the final radial offset to the target after the hop.
Desired_InTrack	Enter the final in-track offset to the target after the hop.
Desired_CrossTrack	Enter the cross-track offset to the target after the hop.
Hop_Duration	Enter the duration of the hop sequence to get from the initial position to the desired relative position.
Engine_Name	Enter, as a string, the name of the finite maneuver engine model.
Maneuver_Type	Select the type of maneuver, "Impulsive" or "Finite", from the drop-down list.