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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 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .081355772252886 6.8815e-08  
a 2.558815346481287 2.881e-08 AU
q 2.350640947915766 1.7282e-07 AU
i 15.32884545897806 1.063e-05 deg
node 39.64887662130277 3.5953e-05 deg
peri 40.3325976233915 0.00010366 deg
M 238.656367171079 9.6721e-05 deg
tp 2456904.431305952563
(2014-Sep-03.93130595)		 0.00040448 JED
period 1495.053888807623
4.09		 2.5249e-05
6.913e-08		 d
yr
n .2407939959188476 4.0667e-09 deg/d
Q 2.766989745046808 3.1154e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      636  
   data-arc span      23064 days (63.15 yr)  
   first obs. used      1950-02-17  
   last obs. used      2013-04-11  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .54357  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 14:57:04  

Additional Information
 Earth MOID = 1.38015 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 12.3 mag n/a PDS3 (MPO 18660)  

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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