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129978 (1999 UC39)
Classification: Main-belt Asteroid          SPK-ID: 2129978
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2072350384678796 4.6143e-08  
a 2.351216501522646 9.5568e-09 au
q 1.863962059383287 1.0866e-07 au
i 12.41053215711977 4.1984e-06 deg
node 290.4689872339757 2.46e-05 deg
peri 92.58500163339015 2.6876e-05 deg
M 260.0585818838393 1.0036e-05 deg
tp 2459366.078263225222
(2021-May-31.57826323)
3.7384e-05 TDB
period 1316.853185013978
3.61
8.0287e-06
2.198e-08
d
yr
n .2733789947861034 1.6668e-09 deg/d
Q 2.838470943662005 1.1537e-08 au
  Orbit Determination Parameters
   # obs. used (total)      639  
   data-arc span      7149 days (19.57 yr)  
   first obs. used      1999-10-05  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52449  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:07:07  

Additional Information
 Earth MOID = .916035 au 
 Jupiter MOID = 2.75697 au 
 T_jup = 3.498 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO333808  

129978 (1999 UC39)          Discovered 1999-Oct-29 by LONEOS at Anderson Mesa
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

Alternate Designations
 1999 UC39 = 2000 AW92 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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