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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1523045948120052 1.0766e-07  
a 2.978307424328978 3.2897e-08 AU
q 2.524697518840966 3.3675e-07 AU
i 14.0033187113254 8.1971e-06 deg
node 55.68861026690752 3.6607e-05 deg
peri 326.257529546646 4.3714e-05 deg
M 347.5084161799479 2.6304e-05 deg
tp 2457065.642994554982
(2015-Feb-12.14299456)
0.00013764 JED
period 1877.38227414749
5.14
3.1105e-05
8.516e-08
d
yr
n .1917563646772335 3.1771e-09 deg/d
Q 3.43191732981699 3.7908e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      867  
   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      .49333  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:29:08  

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
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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