Here are some numbers for those who want to play with them. These numbers represent the velocity change (delta-v) in kilometers per second (km/sec) required for a body to shift orbit location to include launch or landing.
From
To
Delta-V
LEO
Phobos, Deimos
5.6
LEO
Mars Surface
4.8
LEO
L4, L5
3.9
LEO
Lunar surface
6.2
LEO
GEO
4.0
LEO
Asteroids 1982 DB
4.5
LEO
1982XB, HR, Anteros
5.3
Mars
LMO
4.4
LMO
Phobos
0.54
LMO
Deimos
0.87
LMO
Mars
0.05
LMO
Escape
1.43
LMO
Earth return
3.4
Phobos
LMO/Mars
0.56
Phobos
Deimos
0.74
Phobos
escape
0.89
Phobos
Earth return
2.88
Phobos & Deimos
LEO
1.8
Deimos
LMO/Mars
0.67
Deimos
Phobos
0.74
Deimos
escape
0.56
Deimos
Lunar Surface
2.55
Lunar surface
LEO
3.2
GEO synch.
LEO
4.2
GEO synch.
1982 DB
0.14
Earth surface
LEO
12
Earth surface
GEO
15
Here are some numbers for those who want to play with them. These numbers represent the velocity change (delta-v) in kilometers per second (km/sec) required for a body to shift orbit location to include launch or landing.