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129984 (1999 UC51)
Classification: Main-belt Asteroid          SPK-ID: 2129984
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1861504608369236 3.7002e-08  
a 2.579312326085053 1.7795e-08 au
q 2.099172147941963 9.4586e-08 au
i 14.37718311744429 5.9138e-06 deg
node 111.1399882506429 1.714e-05 deg
peri 293.0416002750746 2.4878e-05 deg
M 341.6979372313135 2.0573e-05 deg
tp 2459077.422230147552
(2020-Aug-15.92223015)
8.6865e-05 TDB
period 1513.053648821364
4.14
1.5658e-05
4.287e-08
d
yr
n .2379294351396147 2.4622e-09 deg/d
Q 3.059452504228142 2.1107e-08 au
  Orbit Determination Parameters
   # obs. used (total)      530  
   data-arc span      6800 days (18.62 yr)  
   first obs. used      1999-10-08  
   last obs. used      2018-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55535  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 16:10:21  

Additional Information
 Earth MOID = 1.1556 au 
 Jupiter MOID = 2.40356 au 
 T_jup = 3.358 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO475137  

129984 (1999 UC51)          Discovered 1999-Oct-31 by LONEOS at Anderson Mesa
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

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