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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2010186314599993 6.6235e-08  
a 2.765380987729412 2.6678e-08 au
q 2.209487886110545 1.7914e-07 au
i 9.120591519721438 9.2515e-06 deg
node 6.156667285672397 3.737e-05 deg
peri 61.35579262985754 4.3776e-05 deg
M 249.5693811710238 2.1017e-05 deg
tp 2457915.749870167088
(2017-Jun-11.24987017)
0.00010052 JED
period 1679.696765508666
4.60
2.4306e-05
6.655e-08
d
yr
n .2143243991369958 3.1014e-09 deg/d
Q 3.32127408934828 3.204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      711  
   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      .49004  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 17:20:19  

Additional Information
 Earth MOID = 1.2387 au 
 Jupiter MOID = 2.10525 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
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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