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523973 (1999 CD139)
Classification: Main-belt Asteroid          SPK-ID: 2523973
[ 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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2320262190315064 7.1078e-08  
a 2.454716925430449 1.9399e-08 au
q 1.885158238430178 1.7038e-07 au
i 8.383045700673296 5.5997e-06 deg
node 324.7947979716978 5.5048e-05 deg
peri 303.2256660132248 5.6528e-05 deg
M 93.80638334407654 1.1534e-05 deg
tp 2458634.458400818736
(2019-May-30.95840082)		 4.4727e-05 TDB
period 1404.754889887522
3.85		 1.6653e-05
4.559e-08		 d
yr
n .2562724661729599 3.038e-09 deg/d
Q 3.02427561243072 2.3901e-08 au
   Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      7953 days (21.77 yr)  
   first obs. used      1999-02-07  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68266  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:48:33  

Additional Information
 Earth MOID = .884553 au 
 Jupiter MOID = 2.15379 au 
 T_jup = 3.442 
[ 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 16.9   .34292 MPO457212 autocmod 2.6q

523973 (1999 CD139)          Discovered 1999-Feb-07 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29

Alternate Designations
 1999 CD139 = 2004 RT343 = 2011 HN81 = 2015 KC153 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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