Artificial satellites that orbit Earth.

Entity["Satellite",name] or

represents an entity of type "Satellite".

[prop]

gives the value of a specified property.

[{propi,}]

gives the value of a list of properties.

[prop,{qualivali,}]

gives the value of a specified property modified by qualifier rules quali->vali.

[Dated[prop,date]]

gives the value of a property associated with a particular date specification.

EntityClass["Satellite",{propispeci,}]

represents a class of entities with values of propi defined by speci.

Sample Entities

Sample Entity Classes

Properties

  • AlternateNamesalternate names
    Altitudealtitude
    ApogeeDistanceapogee distance
    AscendingNodeLongitudelongitude of ascending node Ω
    AverageElevationWGS84average altitude
    AverageVelocityaverage orbit velocity
    Azimuthazimuth
    BooleanRiseabove the horizon
    Constellationconstellation
    Contractorcontractor
    CountryOfContractorcontractor country
    CountryOfOperatorOwneroperator countries
    DecayedDatedecay date
    Declinationdeclination
    Disciplinesdisciplines
    DistanceFromLocationdistance
    DryMasssatellite mass
    Eccentricityeccentricity
    ElevationWGS84orbital altitude
    ExpectedLifetimeexpected lifetime
    FundingAgenciesfunding agencies
    GetTLETimeTLE epoch
    Headingheading
    Imageimage
    InclinationOsculatinginclination
    LandingDatelanding date
    LaunchDatelaunch date
    LaunchMassKglaunch mass
    LaunchSitelaunch site
    LaunchVehiclelaunch vehicle
    MagneticAzimuthmagnetic azimuth
    MeanMotionmean motion
    Namename
    NORADNumberNORAD number
    NSSDCIDinternational designator
    ObjectTypeobject type
    OperatorOwneroperator
    Orbiterorbiter
    OrbitTypeorbit type
    PerigeeArgumentargument of periapsis ω
    PerigeeDistanceperigee distance
    PerigeeLongitudelongitude of periapsis ϖ
    PeriodOsculatingorbital period
    Positionposition
    PositionLineposition line
    Powerpower in watts
    PrimaryCrewprimary crew
    Purposepurpose
    RightAscensionright ascension
    RiseTimenext rise
    SatelliteLocationLinesatellite location line
    SatelliteVisibilityDistancesatellite visibility distance
    SemimajorAxissemimajor axis
    SemiminorAxissemiminor axis
    SetTimenext set
    SunAnglesun angle
    TimeInOrbittime in orbit
    TransmissionDelaytransmission delay
    Usersuser type
    Velocityinstantaneous velocity
    VisibleRegionRadiusvisible region radius

Details

  • "Satellite" entities include the collection of objects that orbit Earth and are tracked by USSTRATCOM and NORAD. Classified satellites are not included.
  • "Satellite" entity classes include groups based primarily on mission type, such as GPS satellites, or satellite constellation, such as EchoStar satellites.
  • Some properties are available for the "Satellite" entity type as a whole and can be given using the form EntityValue["Satellite",property]. Such properties include:
  • "Properties"the list of available properties
    "PropertyCanonicalNames"the standard names of available properties
    "SampleEntities"a sample list of available entities (typically of length 10)
    "SampleEntityClasses"a sample list of available entity classes (typically of length 10)
    "EntityCount"number of entities available
    "Entities"the list of available entities
    "EntityCanonicalNames"the standard names of available entities
    "EntityClasses"the list of available entity classes
    "EntityClassCanonicalNames"the standard names of available entity classes
    "PropertyClasses"the list of available property classes
    "PropertyClassCanonicalNames"the standard names of available property classes
    "PropertyCount"number of properties available
  • The following annotations can be used in the third argument of EntityValue["Satellite",property,annotation]:
  • "Source"source information for the property
    "Date"the date associated with the entity-property value (if any)
    "EntityAssociation"an association of entities and entity-property values
    "PropertyAssociation"an association of properties and entity-property values
    "EntityPropertyAssociation"an association in which the specified entities are keys, and values are a nested association of properties and entity-property values
    "PropertyEntityAssociation"an association in which the specified properties are keys, and values are a nested association of entities and entity-property values
    "Dataset"a dataset in which the specified entities are keys, and values are an association of property names and entity-property values
  • The following annotations can be used in the second argument of EntityValue[property,annotation]:
  • "Qualifiers"the list of possible qualifiers for the property
    "QualifierValues"the list of possible values that can be given to each qualifier
    "DefaultQualifierValues"the list of default values for the property's qualifiers
    "Description"a brief textual description of the property
    "Definition"a detailed textual definition of the property
    "PhysicalQuantity"the physical quantity associated with the entity-property value
    "Unit"the unit associated with the entity-property value
  • A qualifier value of Automatic indicates that an applicable format of values can be used; e.g. for the "Date" qualifier, this includes a proper date or date span.

Examples

Basic Examples  (3)

Use for entity discovery:

In[1]:=
Click for copyable input
Out[1]=

Find a property value for an entity:

In[1]:=
Click for copyable input
Out[1]=

Retrieve a dataset of all available properties for an entity:

In[1]:=
Click for copyable input
Out[1]=