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11971 (1994 UJ2)
Classification: Main-belt Asteroid          SPK-ID: 2011971
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1523045953631722 1.0767e-07  
a 2.978307423347468 3.2939e-08 AU
q 2.5246975163674 3.3677e-07 AU
i 14.00331845159516 8.2056e-06 deg
node 55.6886096298928 3.6619e-05 deg
peri 326.2575296583585 4.3728e-05 deg
M 347.5084169922753 2.6344e-05 deg
tp 2457065.642990286532
(2015-Feb-12.14299029)
0.00013785 JED
period 1877.382273219445
5.14
3.1145e-05
8.527e-08
d
yr
n .1917563647720242 3.1811e-09 deg/d
Q 3.431917330327536 3.7956e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      862  
   data-arc span      16849 days (46.13 yr)  
   first obs. used      1968-10-15  
   last obs. used      2014-12-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49312  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:33:43  

Additional Information
 Earth MOID = 1.54187 AU 
 T_jup = 3.198 
[ 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 12.6 mag n/a MPO313516  

11971 (1994 UJ2)          Discovered 1994-Oct-31 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1994 UJ2 = 1968 TF = 1979 YU9 = 1989 UR6 = 1989 YL8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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