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69942 (1998 UC31)
Classification: Main-belt Asteroid          SPK-ID: 2069942
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2013608926512311 6.6234e-08  
a 2.764576020669258 2.6673e-08 AU
q 2.207898525345108 1.7909e-07 AU
i 9.12105728782443 9.2542e-06 deg
node 6.168247952445301 3.7489e-05 deg
peri 61.3651939749363 4.3903e-05 deg
M 163.8076356337522 2.0663e-05 deg
tp 2456236.536036799210
(2012-Nov-05.03603680)
9.4328e-05 JED
period 1678.963411493228
4.60
2.4298e-05
6.652e-08
d
yr
n .2144180138385654 3.1031e-09 deg/d
Q 3.321253515993408 3.2044e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      698  
   data-arc span      5777 days (15.82 yr)  
   first obs. used      1998-08-31  
   last obs. used      2014-06-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49139  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 14:06:01  

Additional Information
 Earth MOID = 1.23762 AU 
 T_jup = 3.292 
[ 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 13.9 mag n/a MPO299423  

69942 (1998 UC31)          Discovered 1998-Oct-25 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 UC31 = 2000 EZ63 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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