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JPL Small-Body Database Browser
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4568 Menkaure (1983 RY3)
Classification: Main-belt Asteroid          SPK-ID: 2004568
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06271382655014762 3.9567e-08  
a 3.036065800430039 1.8994e-08 au
q 2.845662496427035 1.2157e-07 au
i 10.66442239636431 5.7243e-06 deg
node 6.9944251920211 1.9936e-05 deg
peri 232.2942228449287 4.8879e-05 deg
M 3.65235804912544 4.5105e-05 deg
tp 2458580.896390557957
(2019-Apr-07.39639056)
0.00024211 TDB
period 1932.258366844792
5.29
1.8132e-05
4.964e-08
d
yr
n .1863104883783468 1.7483e-09 deg/d
Q 3.226469104433044 2.0185e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1952  
   data-arc span      16761 days (45.89 yr)  
   first obs. used      1973-10-29  
   last obs. used      2019-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:37:34  

Additional Information
 Earth MOID = 1.84989 au 
 Jupiter MOID = 1.79713 au 
 T_jup = 3.212 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.8   n/a MPO452230  
diameter diameter 14.871 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.183   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4568 Menkaure (1983 RY3)          Discovered 1983-Sep-02 by Thomas, N. G. at Flagstaff
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1983 RY3 = 1973 UG6 = 1976 GR4 = 1978 RS2 = 1978 TG3 = 1978 TV 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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