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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 ]

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Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2015302381924744 6.6818e-08  
a 2.764183330995895 2.6752e-08 AU
q 2.207116805892625 1.817e-07 AU
i 9.12194966757165 9.9604e-06 deg
node 6.172329291133243 4.1297e-05 deg
peri 61.34710378731526 4.9096e-05 deg
M 120.9280102904868 2.3697e-05 deg
tp 2456236.637647629174
(2012-Nov-05.13764763)
0.00010843 JED
period 1678.605695784496
4.60
2.4369e-05
6.672e-08
d
yr
n .2144637069349118 3.1135e-09 deg/d
Q 3.321249856099165 3.2144e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      5699 days (15.60 yr)  
   first obs. used      1998-08-31  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52732  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 15:18:02  

Additional Information
 Earth MOID = 1.23624 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 13.8 mag n/a MPO263880  

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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