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JPL Small-Body Database Browser
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305731 (2009 CM39)
Classification: Main-belt Asteroid          SPK-ID: 2305731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1049505557821981 7.3444e-08  
a 2.373398622454325 2.7887e-08 au
q 2.12430911793504 1.8569e-07 au
i 7.494234564887305 8.5691e-06 deg
node 334.6665309965083 5.1794e-05 deg
peri 65.63696068570491 6.5511e-05 deg
M 3.727305013503262 4.5109e-05 deg
tp 2458586.672397434286
(2019-Apr-13.17239743)
0.00016723 TDB
period 1335.532484093221
3.66
2.3538e-05
6.444e-08
d
yr
n .2695554052692528 4.7509e-09 deg/d
Q 2.62248812697361 3.0814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      6048 days (16.56 yr)  
   first obs. used      2002-01-21  
   last obs. used      2018-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54581  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:49:41  

Additional Information
 Earth MOID = 1.14321 au 
 Jupiter MOID = 2.73333 au 
 T_jup = 3.524 
[ 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 17.1   n/a MPO413264  

305731 (2009 CM39)          Discovered 2009-Feb-14 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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