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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06281029038351912 3.6577e-08  
a 3.033619136670544 1.7353e-08 au
q 2.843076637783267 1.0906e-07 au
i 10.66559340647805 5.3967e-06 deg
node 6.859913778237362 1.8572e-05 deg
peri 231.144579365307 4.7936e-05 deg
M 79.38609924632755 4.4157e-05 deg
tp 2458574.919253721397
(2019-Apr-01.41925372)
0.00023707 TDB
period 1929.923124008195
5.28
1.656e-05
4.534e-08
d
yr
n .186535927530796 1.6006e-09 deg/d
Q 3.224161635557821 1.8443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3062  
   data-arc span      17128 days (46.89 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37535  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:53:45  

Additional Information
 Earth MOID = 1.84706 au 
 Jupiter MOID = 1.79576 au 
 T_jup = 3.213 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456869.5 (2014-Jul-31.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06085402759992789 3.6187e-08  
q 2.850026116660339 1.0733e-07 au
tp 2456653.436664540142
(2013-Dec-26.93666454)
0.00024938 TDB
node 7.033636304101634 1.8555e-05 deg
peri 232.8139067618004 4.9485e-05 deg
i 10.67087387221637 5.3972e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3062  
   data-arc span      17128 days (46.89 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37535  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 15:53:45  

Additional Information
 Jupiter MOID = 1.79576 au 
 T_jup = 3.213 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.309514083294722E-15 -3.841434297922296E-15 -3.575131765910894E-12 3.354857307899437E-16 -6.809727390401758E-13 7.673947116363094E-16
q -3.841434297922296E-15 1.151995697443706E-14 9.939945323731355E-12 -2.388374126721374E-15 1.904076241589339E-12 -1.786470248695289E-15
tp -3.575131765910894E-12 9.939945323731355E-12 6.21916057724807E-8 -1.295857360676043E-11 1.144913516343314E-8 -1.132258615768487E-11
node 3.354857307899437E-16 -2.388374126721374E-15 -1.295857360676043E-11 3.44288364729128E-10 -3.404094422478806E-10 -1.432450253918044E-11
peri -6.809727390401758E-13 1.904076241589339E-12 1.144913516343314E-8 -3.404094422478806E-10 2.448772619586082E-9 1.201030065272443E-11
i 7.673947116363094E-16 -1.786470248695289E-15 -1.132258615768487E-11 -1.432450253918044E-11 1.201030065272443E-11 2.913024216744699E-11

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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