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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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06281027901903513 3.9477e-08  
a 3.03361914302995 1.9297e-08 au
q 2.843076678218753 1.2123e-07 au
i 10.66559507787787 5.6748e-06 deg
node 6.859920292312027 1.988e-05 deg
peri 231.144575124018 4.8338e-05 deg
M 79.38609504459386 4.4417e-05 deg
tp 2458574.919274908237
(2019-Apr-01.41927491)
0.00023829 TDB
period 1929.923130076771
5.28
1.8414e-05
5.041e-08
d
yr
n .1865359269442403 1.7798e-09 deg/d
Q 3.224161607841148 2.0509e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2851  
   data-arc span      17026 days (46.61 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38423  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:11:00  

Additional Information
 Earth MOID = 1.84706 au 
 Jupiter MOID = 1.79576 au 
 T_jup = 3.213 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456580.5 (2013-Oct-15.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06061167278899777 3.9148e-08  
q 2.850068425275512 1.1956e-07 au
tp 2456653.770481797524
(2013-Dec-27.27048180)
0.00025113 TDB
node 7.044463052112377 1.9858e-05 deg
peri 232.8754261437948 5.008e-05 deg
i 10.67179784844756 5.6769e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2851  
   data-arc span      17026 days (46.61 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38423  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:11:00  

Additional Information
 Jupiter MOID = 1.79576 au 
 T_jup = 3.213 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.532578097281166E-15 -4.627938027429789E-15 -3.864980568176683E-12 -2.750076116300164E-15 -7.173053946734719E-13 -2.140685558816577E-16
q -4.627938027429789E-15 1.429475117009242E-14 1.093237423437443E-11 6.71486907965267E-15 2.028362124133114E-12 1.227634268526088E-15
tp -3.864980568176683E-12 1.093237423437443E-11 6.306516004483116E-8 2.801435715311047E-11 1.155680927385585E-8 -7.947355417491814E-13
node -2.750076116300164E-15 6.71486907965267E-15 2.801435715311047E-11 3.943271024688393E-10 -3.820081267272899E-10 -2.025092668208068E-12
peri -7.173053946734719E-13 2.028362124133114E-12 1.155680927385585E-8 -3.820081267272899E-10 2.507988091761494E-9 1.850344753841673E-12
i -2.140685558816577E-16 1.227634268526088E-15 -7.947355417491814E-13 -2.025092668208068E-12 1.850344753841673E-12 3.222667065668013E-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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