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JPL Small-Body Database Browser
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91567 (1999 RU239)
Classification: Main-belt Asteroid          SPK-ID: 2091567
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05678375900484187 4.1565e-08  
a 2.972259478924137 2.0692e-08 au
q 2.803483412973051 1.2805e-07 au
i 8.423614872039753 4.7856e-06 deg
node 153.0210361956014 2.4773e-05 deg
peri 213.2911034465275 4.3533e-05 deg
M 14.43111715837591 3.5457e-05 deg
tp 2458925.471552556218
(2020-Mar-16.97155256)
0.00018435 TDB
period 1871.666675790554
5.12
1.9545e-05
5.351e-08
d
yr
n .1923419402912345 2.0085e-09 deg/d
Q 3.141035544875222 2.1867e-08 au
  Orbit Determination Parameters
   # obs. used (total)      950  
   data-arc span      7394 days (20.24 yr)  
   first obs. used      1999-09-08  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54906  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 08:17:10  

Additional Information
 Earth MOID = 1.80435 au 
 Jupiter MOID = 2.16232 au 
 T_jup = 3.244 
[ 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 14.2   n/a MPO493512  

91567 (1999 RU239)          Discovered 1999-Sep-08 by LONEOS at Anderson Mesa
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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