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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08174175652725861 5.9925e-08  
a 2.559076958468742 2.7102e-08 AU
q 2.349893512795073 1.5613e-07 AU
i 15.32745721035761 9.8883e-06 deg
node 39.63457179682361 3.3185e-05 deg
peri 40.55276018601143 0.00010035 deg
M 22.96468176996913 9.7938e-05 deg
tp 2456905.114715917135
(2014-Sep-04.61471592)
0.00040598 JED
period 1495.283174998585
4.09
2.3754e-05
6.503e-08
d
yr
n .2407570726530382 3.8246e-09 deg/d
Q 2.768260404142412 2.9317e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      673  
   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      .50414  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 02:46:34  

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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