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
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.


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 
[ 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 11.8   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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1905-Mar-18 21:10 00:03 Jupiter 1.84040834104877 1.84040741992184 1.84040926217612 3.47537448987635 3.34032265995667 2416923.381864954 2.7199281658815 77.8141174316804 32.4377276303777 -57.8961024087541 2806804.00165349 T 43 CATAB v2.0f-lin.ifort 2020-Dec-18 02:18:16 2020-Dec-18 02:18
1952-Dec-13 18:47 00:02 Jupiter 1.8806648048848 1.88066404847497 1.88066556129516 3.26961390203817 3.12883457781108 2434360.282966353 1.58973875834703 68.8079591259128 19.9338722579572 -60.1105389255863 3115599.54958911 T 43 CATAB v2.0f-lin.ifort 2020-Dec-18 02:18:16 2020-Dec-18 02:18
2000-Sep-13 23:20 < 00:01 Jupiter 1.93042559868016 1.93042509954834 1.93042609781209 3.07487947032443 2.92870854344001 2451801.472181153 0.409939482473738 48.9320460509772 10.519578602436 -67.7926254282647 3453195.42768932 T 43 CATAB v2.0f-lin.ifort 2020-Dec-18 02:18:16 2020-Dec-18 02:18
2010-Feb-08 16:44 < 00:01 Jupiter 1.97021554113611 1.97021510222882 1.9702159800434 4.29001373203102 4.18860245909877 2455236.197360753 0.198345906122678 61.7688001491898 18.1334607656365 82.8330104724558 3352630.68135562 T 43 CATAB v2.0f-lin.ifort 2020-Dec-18 02:18:16 2020-Dec-18 02:18
2048-Jun-18 20:02 < 00:01 Jupiter 1.98640742600382 1.98640693839705 1.98640791361082 2.94310259926228 2.79446495676519 2469246.334739545 0.919796584753308 50.2667738685082 8.78840747154365 -64.0261818362761 3886579.66762699 T 43 CATAB v2.0f-lin.ifort 2020-Dec-18 02:18:16 2020-Dec-18 02:18
2057-Nov-01 10:50 < 00:01 Jupiter 1.91468629415914 1.91468558374767 1.91468700457049 4.24751282335015 4.14205280403688 2472668.951649085 0.995850013830104 79.1319600564377 32.8889530655721 88.5618128124364 2930040.15429709 T 43 CATAB v2.0f-lin.ifort 2020-Dec-18 02:18:16 2020-Dec-18 02:18
2105-Jul-24 21:41 00:02 Jupiter 1.8682866365067 1.86828571044843 1.86828756256625 4.16955831794568 4.05936932865094 2490100.403686305 2.10821643855644 136.767372295199 34.7137746357241 -79.2477025276569 3054697.89306727 T 43 CATAB v2.0f-lin.ifort 2020-Dec-18 02:18:16 2020-Dec-18 02:18
2153-Apr-14 02:54 00:03 Jupiter 1.83253137447629 1.83253047629358 1.83253227266784 4.04862160403508 3.93279899754154 2507530.621100374 3.22491898752071 257.768560646725 24.7151064573628 -83.2226417676328 3225436.82807377 T 43 CATAB v2.0f-lin.ifort 2020-Dec-18 02:18:16 2020-Dec-18 02:18
2201-Jan-01 01:59 00:04 Jupiter 1.81487644825478 1.81487578588352 1.81487711064008 3.89714764312728 3.77549176502367 2524958.582450402 4.3529351037419 347.26869677041 20.0157829322354 -87.5080924065222 3162287.70177061 T 43 CATAB v2.0f-lin.ifort 2020-Dec-18 02:18:16 2020-Dec-18 02:18

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 2021-Jan-17 23:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin