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JPL Small-Body Database Browser
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300939 (2008 CD138)
Classification: Outer Main-belt Asteroid          SPK-ID: 2300939
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03125287855833512 6.5038e-08  
a 3.251055795608222 5.905e-08 au
q 3.149450943641706 2.1234e-07 au
i 5.405720546522688 6.0969e-06 deg
node 123.0717607530771 8.0797e-05 deg
peri 40.711557177724 0.00015766 deg
M 323.0596589468341 0.00014103 deg
tp 2458820.201722281859
(2019-Dec-02.70172228)
0.00084147 TDB
period 2141.090682071295
5.86
5.8334e-05
1.597e-07
d
yr
n .168138604784238 4.5809e-09 deg/d
Q 3.352660647574737 6.0895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      6176 days (16.91 yr)  
   first obs. used      2002-02-10  
   last obs. used      2019-01-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6265  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:28:14  

Additional Information
 Earth MOID = 2.16042 au 
 Jupiter MOID = 1.62986 au 
 T_jup = 3.174 
[ 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 16.0   n/a MPO427618  

300939 (2008 CD138)          Discovered 2008-Feb-08 by Spacewatch at Kitt Peak
Reference: 20111012/Numbers.arcLast Updated: 2011-10-13

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