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31148 (1997 UO8)
Classification: Main-belt Asteroid          SPK-ID: 2031148
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0817417554765765 5.9858e-08  
a 2.559076960376921 2.6653e-08 AU
q 2.34989351723605 1.5569e-07 AU
i 15.32745671681548 9.8227e-06 deg
node 39.63457325183779 3.2993e-05 deg
peri 40.55276535003446 9.8914e-05 deg
M 22.96467448736031 9.6128e-05 deg
tp 2456905.114746059233
(2014-Sep-04.61474606)
0.0003985 JED
period 1495.283176671025
4.09
2.3361e-05
6.396e-08
d
yr
n .240757072383757 3.7613e-09 deg/d
Q 2.768260403517792 2.8832e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      677  
   data-arc span      23596 days (64.60 yr)  
   first obs. used      1950-02-17  
   last obs. used      2014-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50357  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 15:04:17  

Additional Information
 Earth MOID = 1.37999 AU 
 T_jup = 3.381 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO266109  

31148 (1997 UO8)          Discovered 1997-Oct-23 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 UO8 = 1999 CL128 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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