|
gptkbp:instanceOf
|
gptkb:asteroid
|
|
gptkbp:albedo
|
0.33
|
|
gptkbp:aphelion
|
1.099 AU
|
|
gptkbp:apparentMagnitude
|
19.7
|
|
gptkbp:category
|
potentially hazardous asteroid
|
|
gptkbp:closeApproachDate
|
2029-04-13
|
|
gptkbp:diameter
|
~340 meters
|
|
gptkbp:discoveredBy
|
gptkb:David_J._Tholen
gptkb:Fabrizio_Bernardi
gptkb:Roy_A._Tucker
|
|
gptkbp:discoveredIn
|
2004-06-19
|
|
gptkbp:distanceFromEarth
|
~31,600 km (from Earth center) in 2029
|
|
gptkbp:eccentricity
|
0.191
|
|
gptkbp:futureCloseApproach
|
2036
2068
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
asteroid 99942 Apophis
|
|
gptkbp:inclination
|
3.331°
|
|
gptkbp:JPLSmallBodyDatabaseID
|
99942
|
|
gptkbp:mass
|
~2.7×10^10 kg
|
|
gptkbp:minorPlanetNumber
|
gptkb:99942_Apophis
|
|
gptkbp:MOID
|
0.000254 AU
|
|
gptkbp:namedAfter
|
gptkb:Apophis_(mythology)
|
|
gptkbp:namedFor
|
gptkb:International_Astronomical_Union
|
|
gptkbp:observedBy
|
gptkb:Arecibo_Observatory
gptkb:Goldstone_Deep_Space_Communications_Complex
|
|
gptkbp:orbitRefinedBy
|
radar observations
|
|
gptkbp:orbitType
|
gptkb:Apollo
323.6 days
|
|
gptkbp:parentBody
|
Sun
|
|
gptkbp:perihelion
|
0.746 AU
|
|
gptkbp:provisionalDesignation
|
gptkb:2004_MN4
|
|
gptkbp:publicInterest
|
high due to close approach in 2029
|
|
gptkbp:riskListed
|
formerly listed on Torino Scale
|
|
gptkbp:riskRemoved
|
2006
|
|
gptkbp:rotationPeriod
|
30.56 hours
|
|
gptkbp:semiMajorAxis
|
0.922 AU
|
|
gptkbp:spectralType
|
Sq
|
|
gptkbp:bfsParent
|
gptkb:Edward_L._G._Bowell
gptkb:David_J._Tholen
gptkb:Roy_A._Tucker
gptkb:David_Tholen
|
|
gptkbp:bfsLayer
|
7
|