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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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06281028561776071 3.5057e-08  
a 3.033619139256601 1.6237e-08 au
q 2.843076654664389 1.0244e-07 au
i 10.66559253193835 5.3049e-06 deg
node 6.859907482135111 1.6934e-05 deg
peri 231.1445868459234 4.7296e-05 deg
M 79.38609709930803 4.406e-05 deg
tp 2458574.919264687159
(2019-Apr-01.41926469)		 0.00023663 TDB
period 1929.923126475986
5.28		 1.5495e-05
4.242e-08		 d
yr
n .1865359272922727 1.4976e-09 deg/d
Q 3.224161623848814 1.7257e-08 au
   Orbit Determination Parameters
   # obs. used (total)      3300  
   data-arc span      17183 days (47.04 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:18:07  

Additional Information
 Earth MOID = 1.84706 au 
 Jupiter MOID = 1.79576 au 
 T_jup = 3.213 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457208.5 (2015-Jul-05.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06104763294253836 3.4635e-08  
q 2.849459882199692 1.0069e-07 au
tp 2456653.286866055672
(2013-Dec-26.78686606)		 0.00024835 TDB
node 7.025884087525857 1.6917e-05 deg
peri 232.7708868053876 4.872e-05 deg
i 10.67195639185418 5.3054e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      3300  
   data-arc span      17183 days (47.04 yr)  
   first obs. used      1973-10-29  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36972  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:18:07  

Additional Information
 Jupiter MOID = 1.79576 au 
 T_jup = 3.213 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.199549739502456E-15 -3.452028588371624E-15 -3.465784205729851E-12 -8.61645959424835E-16 -6.670127901719488E-13 6.950209557409041E-16
q -3.452028588371624E-15 1.013915193608534E-14 9.570797597722276E-12 1.155372957033453E-15 1.858528894786728E-12 -1.47299373583834E-15
tp -3.465784205729851E-12 9.570797597722276E-12 6.167872806691007E-8 -2.593618005353223E-12 1.135113448497717E-8 -1.077034671593011E-11
node -8.61645959424835E-16 1.155372957033453E-15 -2.593618005353223E-12 2.861826489843934E-10 -2.814752342431721E-10 -2.150553832475508E-11
peri -6.670127901719488E-13 1.858528894786728E-12 1.135113448497717E-8 -2.814752342431721E-10 2.373608281917411E-9 1.91637249540685E-11
i 6.950209557409041E-16 -1.47299373583834E-15 -1.077034671593011E-11 -2.150553832475508E-11 1.91637249540685E-11 2.814735763987628E-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)  
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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