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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1524509106956931 1.0968e-07  
a 2.978830070662246 4.2166e-08 AU
q 2.52470471358207 3.3818e-07 AU
i 14.00300068500578 1.0121e-05 deg
node 55.69401130003931 3.7698e-05 deg
peri 326.2332968137785 4.7734e-05 deg
M 309.1866520393704 3.6767e-05 deg
tp 2457065.558862863462
(2015-Feb-12.05886286)
0.00019568 JED
period 1877.87647263036
5.14
3.9873e-05
1.092e-07
d
yr
n .1917059003863787 4.0705e-09 deg/d
Q 3.432955427742421 4.8595e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      785  
   data-arc span      16329 days (44.71 yr)  
   first obs. used      1968-10-15  
   last obs. used      2013-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53926  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 16:59:39  

Additional Information
 Earth MOID = 1.5408 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 12.5 mag n/a MPO266022  

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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