Question

Using a Hohmann Transfer, if the parking orbit altitude is 160 km, what is the total ΔV and time required to transfer a spacecraft from a circular low-Earth parking orbit to a circular coplanar orbit whose period is 23 hours 56 minutes?

Answer 1

The transfer is initiated by firing the spacecraft's engine to accelerate it so that it will follow the elliptical orbit. The Hohmann transfer orbit to bring a spacecraft from a lower circular orbit into a higher one. It is one half of an elliptic orbit that touches both the lower circular orbit the spacecraft wishes to leave and the higher circular orbit that it wishes to reach. When the spacecraft has reached its destination orbit, its orbital speed must be increased again to change the elliptic orbit to the larger circular one.

Here, v is the speed of orbiting body.