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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0998726067493016 5.4115e-08  
a 3.05994628189483 2.7453e-08 au
q 2.75434147020916 1.8007e-07 au
i 10.60652990261265 5.6749e-06 deg
node 74.67019376260403 3.1927e-05 deg
peri 242.774351984114 4.6861e-05 deg
M 353.9438202320084 3.4562e-05 deg
tp 2459033.390114676893
(2020-Jul-02.89011468)
0.00018773 TDB
period 1955.100696690208
5.35
2.6311e-05
7.204e-08
d
yr
n .1841337382823526 2.478e-09 deg/d
Q 3.3655510935805 3.0195e-08 au
  Orbit Determination Parameters
   # obs. used (total)      979  
   data-arc span      7265 days (19.89 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52441  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:57:51  

Additional Information
 Earth MOID = 1.7604 au 
 Jupiter MOID = 1.8972 au 
 T_jup = 3.200 
[ 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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