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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06281028393699083 3.5188e-08  
a 3.033619140402058 1.6358e-08 au
q 2.843076660836715 1.0304e-07 au
i 10.66559253957162 5.307e-06 deg
node 6.859907488830705 1.7194e-05 deg
peri 231.1445865142117 4.7415e-05 deg
M 79.38609706339282 4.4063e-05 deg
tp 2458574.919264638656
(2019-Apr-01.41926464)
0.00023665 TDB
period 1929.923127569058
5.28
1.561e-05
4.274e-08
d
yr
n .1865359271866222 1.5087e-09 deg/d
Q 3.224161619967401 1.7385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3259  
   data-arc span      17169 days (47.01 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:50:33  

Additional Information
 Earth MOID = 1.84706 au 
 Jupiter MOID = 1.79576 au 
 T_jup = 3.213 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457144.5 (2015-May-02.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06100943320098988 3.4773e-08  
q 2.849569383194439 1.0131e-07 au
tp 2456653.229330381969
(2013-Dec-26.72933038)
0.00024851 TDB
node 7.026243747635198 1.7177e-05 deg
peri 232.7639852084328 4.886e-05 deg
i 10.67180587105878 5.3075e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3259  
   data-arc span      17169 days (47.01 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37028  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:50:33  

Additional Information
 Jupiter MOID = 1.79576 au 
 T_jup = 3.213 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.209181980885469E-15 -3.486495634490815E-15 -3.466648782192905E-12 -3.605195333664689E-16 -6.669757488514288E-13 7.215975283058983E-16
q -3.486495634490815E-15 1.026287886154582E-14 9.570764882813542E-12 -1.965354352894611E-16 1.857403286070167E-12 -1.55458091763724E-15
tp -3.466648782192905E-12 9.570764882813542E-12 6.175624570913458E-8 -9.289464769348419E-12 1.137214390936897E-8 -1.111189924081789E-11
node -3.605195333664689E-16 -1.965354352894611E-16 -9.289464769348419E-12 2.950437511153478E-10 -2.914185692335146E-10 -2.10692451960132E-11
peri -6.669757488514288E-13 1.857403286070167E-12 1.137214390936897E-8 -2.914185692335146E-10 2.387331152979064E-9 1.867157660018143E-11
i 7.215975283058983E-16 -1.55458091763724E-15 -1.111189924081789E-11 -2.10692451960132E-11 1.867157660018143E-11 2.816922421159787E-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

[ show close-approach data ]
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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