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121513 (1999 UJ6)
Classification: Main-belt Asteroid          SPK-ID: 2121513
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2121900887875887 1.0127e-07  
a 3.066006929675559 6.0212e-08 AU
q 2.41543064704434 3.0845e-07 AU
i 1.234832126651698 9.4031e-06 deg
node 225.5239481610432 0.00048546 deg
peri 162.9753181740482 0.0004869 deg
M 265.2552995659276 3.8179e-05 deg
tp 2457316.572302514354
(2015-Oct-21.07230251)
0.00022021 JED
period 1960.912093805664
5.37
5.7765e-05
1.582e-07
d
yr
n .1835880359640832 5.4081e-09 deg/d
Q 3.716583212306779 7.2989e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      301  
   data-arc span      4995 days (13.68 yr)  
   first obs. used      1999-10-01  
   last obs. used      2013-06-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5493  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-07 02:07:08  

Additional Information
 Earth MOID = 1.4191 AU 
 T_jup = 3.197 
[ 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 15.4 mag n/a MPO264160  

121513 (1999 UJ6)          Discovered 1999-Oct-28 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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