Examples

Some examples of main features based on unit tests

Time

• Convert to TDB from UTC

• Convert to TDB from local

• Convert to UTC from local

• Convert to UTC from TDB

• Seconds elapsed from J2000

• Create datetime from seconds elapsed from J2000

• Display formatted datetime

• Convert from Julian date

• Convert to Julian date

Orbital parameters

State vector

• Create

• To Keplerian

• To equatorial

• To equinoctial

• Convert to given frame

Keplerian elements

• Create

• To state vector

• To equatorial

• To equinoctial

Equinoctial elements

• Create

• To state vector

• To equatorial

• To equinoctial

Coordinates

Equatorial

• Create

• Create from state vector

Planetodetic

• Create

• Convert to planetocentric

Planetocentric

• Create

• Convert to cartesian

• Convert to planetodetic

• Get radius

Surface site

• Create site

• Horizontal coordinate to given body

• Get ephemeris to given body

• Angular separation to given bodies

• Find time windows on distance constraint

• Find time windows on occultation constraint

• Find time windows on coordinate constraint

• Find time windows on illumination constraint

Launch site

• Create launch site

• Allowed azimuth

• Finds launch windows

• Finds launch windows by day

Celestial body (Sun, planets, satellites, asteroids)

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

• Create celestial body with given frame and epoch

• Find time windows on occultation constraint

• Find time windows on distance constraint

• Find time windows on coordinate constraint

• Find angular size from distance

• Get ephemeris

• Get Angular separation

Star

• Same celestial bodies functionalities

• Get equatorial coordinates at given epoch

• Get declination sigma

• Get right ascension sigma

Spacecraft

Configure

• 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

Evaluate constraints

• Find time windows on occultation constraint

• Find time windows on distance constraint

• Find time windows on coordinate constraint

Maneuvers

• 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

Attitudes

• Instrument pointing toward object

• Prograde attitude

• Retrograde attitude

• Zenithattitude

• Nadir

Scenario and simulation

• Create and propagate scenario

• Export to Cosmographia

PDS Archive

• [Generate PDS archive from object] (https://github.com/IO-Aerospace-software-engineering/Astrodynamics.Net/blob/main/IO.Astrodynamics.Tests/PDS/MissionInformation/MissionInformationTests.cs#L41)

• [Generate object from PDS archive] (https://github.com/IO-Aerospace-software-engineering/Astrodynamics.Net/blob/main/IO.Astrodynamics.Tests/PDS/MissionInformation/MissionInformationTests.cs#L41)

• [Validate PDS archive] (https://github.com/IO-Aerospace-software-engineering/Astrodynamics.Net/blob/main/IO.Astrodynamics.Tests/PDS/MissionInformation/MissionInformationTests.cs#L19)