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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08174177667955301 5.7731e-08  
a 2.55907693240586 1.9043e-08 AU
q 2.349893437291345 1.4472e-07 AU
i 15.3274489322383 7.4229e-06 deg
node 39.63459486320467 2.9545e-05 deg
peri 40.55265677216236 7.8439e-05 deg
M 22.96477354958355 6.96e-05 deg
tp 2456905.114336161779
(2014-Sep-04.61433616)
0.00028901 JED
period 1495.28315215555
4.09
1.669e-05
4.569e-08
d
yr
n .2407570763310187 2.6873e-09 deg/d
Q 2.768260427520375 2.0599e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      750  
   data-arc span      23777 days (65.10 yr)  
   first obs. used      1950-02-17  
   last obs. used      2015-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49057  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:33:57  

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
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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