To help you in your developments you can use unit tests as examples :

In these tests, you will find the following examples

• Convert to TDB from UTC

• Convert to TDB from local

• Create celestial body with default orbital parameters (Epoch J2000, Ecliptic frame)

• Create celestial body with given frame and epoch

• Find celestial body occultation windows

• Find celestial body distance constraint windows

• Find celestial body coordinate constraint windows

• Find angular size from distance

• Get ephemeris

• Get Angular separation

• Create and configure spacecraft

• Add and configure fuel tank

• Add and configure engine

• Add and configure payload

• Add and configure instrument

• Link spacecrafts

• Update initial orbital paramters

• Find celestial body occultation windows

• Find celestial body distance constraint windows

• Find celestial body coordinate constraint windows

• Apogee height changing maneuver from given radius

• Apogee height changing maneuver from given orbit

• Apsidal alignment maneuver

• Combined maneuver from given perigee radius and inclination

• Combined maneuver from given orbit

• Perigee height changing maneuver from given perigee radius

• Perigee height changing maneuver from given orbit

• Phasing maneuver

• Plane alignment

• Instrument pointing toward object

• Prograde attitude

• Retrograde attitude

• Zenithattitude

• Nadir

• Create and propagate scenario