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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2120871813579444 1.0003e-07  
a 3.066040958163785 5.942e-08 AU
q 2.415772973418817 3.0479e-07 AU
i 1.234734293547319 9.076e-06 deg
node 225.5138017628333 0.0004755 deg
peri 162.9755326906379 0.00047677 deg
M 301.9704380348023 3.7982e-05 deg
tp 2457316.591011794038
(2015-Oct-21.09101179)
0.00021427 JED
period 1960.944739064189
5.37
5.7005e-05
1.561e-07
d
yr
n .1835849796419051 5.3369e-09 deg/d
Q 3.716308942908753 7.2023e-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      .54534  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 02:17:47  

Additional Information
 Earth MOID = 1.42056 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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