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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06280750652763918 2.3037e-08  
a 3.032058970737509 1.5027e-08 au
q 2.841622907140726 6.889e-08 au
i 10.66871929185761 3.5089e-07 deg
node 6.851287770212934 1.544e-06 deg
peri 230.6776060368406 8.3218e-06 deg
M 117.1964652378333 1.0334e-05 deg
tp 2458572.706370035829
(2019-Mar-30.20637004)
5.2511e-05 TDB
period 1928.434499525695
5.28
1.4337e-05
3.925e-08
d
yr
n .186679920986968 1.3878e-09 deg/d
Q 3.222495034334292 1.5971e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3512  
   data-arc span      17273 days (47.29 yr)  
   first obs. used      1973-10-29  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .3757  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 16:30:44  

Additional Information
 Earth MOID = 1.84426 au 
 Jupiter MOID = 1.79524 au 
 T_jup = 3.213 
[ show covariance matrix ]

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 11.89   n/a E2021B10  
diameter diameter 14.871 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.50231 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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