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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051025622440814 5.1259e-08  
a 2.373225330308381 1.8917e-08 au
q 2.123793267310414 1.1818e-07 au
i 7.495120387237156 7.4415e-06 deg
node 334.6591903877063 3.9649e-05 deg
peri 65.54302486765302 5.4892e-05 deg
M 111.6328429423422 3.8271e-05 deg
tp 2458586.408444849575
(2019-Apr-12.90844485)
0.00014133 TDB
period 1335.386217218783
3.66
1.5966e-05
4.371e-08
d
yr
n .2695849300809575 3.2233e-09 deg/d
Q 2.622657393306348 2.0905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      176  
   data-arc span      6587 days (18.03 yr)  
   first obs. used      2002-01-21  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:57:22  

Additional Information
 Earth MOID = 1.14328 au 
 Jupiter MOID = 2.73277 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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