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JPL Small-Body Database Browser
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59958 (1999 RJ231)
Classification: Main-belt Asteroid          SPK-ID: 2059958
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1007105303499744 5.9015e-08  
a 3.059138802820742 2.7408e-08 au
q 2.751051311574479 1.926e-07 au
i 10.61506596562757 5.7131e-06 deg
node 74.68929119756731 3.7508e-05 deg
peri 243.5041685229535 5.1284e-05 deg
M 279.6873175030847 3.6415e-05 deg
tp 2459036.492312826941
(2020-Jul-05.99231283)
0.00019813 TDB
period 1954.326860190821
5.35
2.6264e-05
7.191e-08
d
yr
n .1842066479938006 2.4756e-09 deg/d
Q 3.367226294067005 3.0168e-08 au
  Orbit Determination Parameters
   # obs. used (total)      850  
   data-arc span      7187 days (19.68 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-05-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52289  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:16:17  

Additional Information
 Earth MOID = 1.7568 au 
 Jupiter MOID = 1.89928 au 
 T_jup = 3.201 
[ 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 13.9   n/a MPO359153  
diameter diameter 6.141 km 0.198 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.107   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59958 (1999 RJ231)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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