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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 ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08228197396919758 5.7293e-08  
a 2.5585169587541 1.9048e-08 au
q 2.347997132954145 1.4338e-07 au
i 15.33359801641137 7.2256e-06 deg
node 39.58311646085203 2.9517e-05 deg
peri 40.27686234373918 7.7731e-05 deg
M 119.5395463658612 6.8712e-05 deg
tp 2456904.147767626315
(2014-Sep-03.64776763)
0.00028495 JED
period 1494.792385338656
4.09
1.6693e-05
4.57e-08
d
yr
n .2408361211436325 2.6896e-09 deg/d
Q 2.769036784554055 2.0616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      765  
   data-arc span      23852 days (65.30 yr)  
   first obs. used      1950-02-17  
   last obs. used      2015-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49285  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 14:27:22  

Additional Information
 Earth MOID = 1.37737 au 
 Jupiter MOID = 2.5113 au 
 T_jup = 3.382 
[ 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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