Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06271382655014762 3.9567e-08  
a 3.036065800430039 1.8994e-08 au
q 2.845662496427035 1.2157e-07 au
i 10.66442239636431 5.7243e-06 deg
node 6.9944251920211 1.9936e-05 deg
peri 232.2942228449287 4.8879e-05 deg
M 3.65235804912544 4.5105e-05 deg
tp 2458580.896390557957
(2019-Apr-07.39639056)		 0.00024211 TDB
period 1932.258366844792
5.29		 1.8132e-05
4.964e-08		 d
yr
n .1863104883783468 1.7483e-09 deg/d
Q 3.226469104433044 2.0185e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1952  
   data-arc span      16761 days (45.89 yr)  
   first obs. used      1973-10-29  
   last obs. used      2019-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:37:34  

Additional Information
 Earth MOID = 1.84989 au 
 Jupiter MOID = 1.79713 au 
 T_jup = 3.212 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456549.5 (2013-Sep-14.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06059358122459086 3.9454e-08  
q 2.850058489133874 1.2076e-07 au
tp 2456653.835372330892
(2013-Dec-27.33537233)		 0.00025311 TDB
node 7.045132513529615 1.9916e-05 deg
peri 232.8883230648426 5.0405e-05 deg
i 10.6719729081998 5.7272e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      1952  
   data-arc span      16761 days (45.89 yr)  
   first obs. used      1973-10-29  
   last obs. used      2019-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45826  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:37:34  

Additional Information
 Jupiter MOID = 1.79713 au 
 T_jup = 3.212 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.55664054044163E-15 -4.711093966909038E-15 -3.979620422022288E-12 -2.928159647854082E-15 -7.367145056014374E-13 -2.730542732532319E-16
q -4.711093966909038E-15 1.458216574605265E-14 1.132674992381081E-11 7.269277897022095E-15 2.095156993088407E-12 1.447528478150905E-15
tp -3.979620422022288E-12 1.132674992381081E-11 6.406703884267972E-8 2.9523821931826E-11 1.17315036171238E-8 -5.112452400318687E-15
node -2.928159647854082E-15 7.269277897022095E-15 2.9523821931826E-11 3.966464743708891E-10 -3.840094061550437E-10 -1.634520556347194E-12
peri -7.367145056014374E-13 2.095156993088407E-12 1.17315036171238E-8 -3.840094061550437E-10 2.540698264537339E-9 1.607215626778725E-12
i -2.730542732532319E-16 1.447528478150905E-15 -5.112452400318687E-15 -1.634520556347194E-12 1.607215626778725E-12 3.280096563524024E-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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-09 11:05 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin