For general access to the Wolfram Knowledgebase, use entities of type DeepSpaceProbe instead of DeepSpaceProbeData.


gives the value of the specified property for the deep space probe entity.


gives a list of property values for the specified deep space probe entities.


gives the specified annotation associated with the given property.


  • DeepSpaceProbeData[] gives a list of all deep space probe entities.
  • DeepSpaceProbeData["Properties"] gives a list of available properties.
  • The specified entity in DeepSpaceProbeData can be an Entity, EntityClass, entity canonical name, or list thereof.
  • The specified property can be an EntityProperty, EntityPropertyClass, property canonical name, or list of properties.
  • Properties that do not apply or are not known in a particular case are indicated by Missing[].
  • Properties include:
  • "Altitude"altitude
    "ArrivalDate"arrival date
    "AscendingNodeLongitude"longitude of ascending node
    "AverageSurfaceSpeed"average surface speed
    "AverageVelocity"average velocity
    "CountryOfOperatorOwner"operator countries
    "DistanceFromEarth"distance from Earth
    "DistanceFromSun"distance from Sun
    "DryMass"dry mass
    "EnergyGenerationRate"energy generation rate
    "FinalDistanceTraveled"final distance traveled
    "FrequencyBand"frequency band
    "HelioCoordinates"heliocentric XYZ coordinates
    "ImpactDate"impact date
    "ImpactType"impact type
    "Inclination"orbital inclination
    "LaunchDate"launch date
    "LaunchMass"launch mass
    "LaunchSite"launch site
    "LaunchVehicle"launch vehicle
    "MaximumElectricalPower"maximum electrical power
    "MaximumSurfaceSpeed"maximum surface speed
    "MaximumThermalPower"maximum thermal power
    "MeanMotion"mean motion
    "MissionEndDate"mission end date
    "NORADNumber"NORAD number
    "NSSDCID"international designator
    "NuclearFuelMass"nuclear fuel mass
    "NuclearFuelSource"nuclear fuel source
    "OrbitGraphic"orbit graphic
    "OrbitPath"orbit path
    "PeriapsisArgument"argument of periapsis
    "PowerSource"power source
    "RightAscension"right ascension
    "SemimajorAxis"semimajor axis
    "SemiminorAxis"semiminor axis
    "SunAngle"Sun angle
    "Velocity"heliocentric velocity
    "WheelCount"number of wheels
  • Some properties are available for DeepSpaceProbeData as a whole and can be given using the form DeepSpaceProbeData[property]. Such properties include:
  • "Entities"all available entities
    "EntityCount"total number of available entities
    "Classes"all available entity classes
    "EntityClassCount"total number of available entity classes
    "SampleEntities"list of sample entities
    "SampleEntityClasses"list of sample entity classes
    "EntityCanonicalNames"list of all entity canonical names
    "PropertyCanonicalNames"list of all property canonical names
    "EntityClassCanonicalNames"list of all entity class canonical names
    "RandomEntities"pseudorandom sample entities
    {"RandomEntities",n}n pseudorandom entities
    "RandomEntityClasses"pseudorandom sample entity classes
    {"RandomEntityClasses",n}n pseudorandom entity classes
  • The following annotations can be used in the third argument of DeepSpaceProbeData[entity,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
    "Source"source information for the property
    "Date"the date associated with the entity-property value (if any)
    "PhysicalQuantity"the physical quantity associated with the entity-property value
    "Unit"the unit associated with the entity-property value
    "EntityAssociation"an association of entities and entity-property values
    "PropertyAssociation"an association of properties and entity-property values
  • If a function is provided as an annotation, it will be used to aggregate the result data. Typical aggregation functions include:
  • Minthe minimum value
    Maxthe maximum value
    Meanthe mean value
    Commonestthe most frequently occurring value
    Medianthe median value
    Totalreturns the total
    Lengththe number of elements


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Basic Examples  (2)

Use for discovery:

Explore properties of deep space probes:

Scope  (4)

Some properties allow you to specify dates:

Some properties allow you to specify dates and locations:

Date qualifiers can accept an explicit DateObject or queries that evaluate to a DateObject:

Location qualifiers can accept an explicit GeoPosition, location-based Entity objects, or queries that evaluate to one of these:

Properties & Relations  (1)

Use SolarSystemFeatureData and GeoGraphics to plot the position of landers:

Neat Examples  (2)

Plot counts of space probe launches by decade:

Create a map showing the locations of Mars landers:

Wolfram Research (2014), DeepSpaceProbeData, Wolfram Language function,


Wolfram Research (2014), DeepSpaceProbeData, Wolfram Language function,


@misc{reference.wolfram_2020_deepspaceprobedata, author="Wolfram Research", title="{DeepSpaceProbeData}", year="2014", howpublished="\url{}", note=[Accessed: 02-December-2020 ]}


@online{reference.wolfram_2020_deepspaceprobedata, organization={Wolfram Research}, title={DeepSpaceProbeData}, year={2014}, url={}, note=[Accessed: 02-December-2020 ]}


Wolfram Language. 2014. "DeepSpaceProbeData." Wolfram Language & System Documentation Center. Wolfram Research.


Wolfram Language. (2014). DeepSpaceProbeData. Wolfram Language & System Documentation Center. Retrieved from