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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08143851971205546 6.268e-08  
a 2.558247585404022 2.4569e-08 AU
q 2.349907688991778 1.6227e-07 AU
i 15.32965287415346 1.0166e-05 deg
node 39.64356016310649 3.5129e-05 deg
peri 40.52129347823803 0.00010195 deg
M 334.8205975445087 9.639e-05 deg
tp 2456905.033430957632
(2014-Sep-04.53343096)
0.00040077 JED
period 1494.556322822532
4.09
2.153e-05
5.895e-08
d
yr
n .240874160781124 3.47e-09 deg/d
Q 2.766587481816266 2.657e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      23327 days (63.87 yr)  
   first obs. used      1950-02-17  
   last obs. used      2013-12-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53964  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 11:47:27  

Additional Information
 Earth MOID = 1.37934 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 (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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