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JPL Small-Body Database Browser
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305720 (2009 CM20)
Classification: Main-belt Asteroid          SPK-ID: 2305720
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2377923047256835 1.0933e-07  
a 2.310118797780883 1.8546e-08 au
q 1.760790324666442 2.5594e-07 au
i 2.845001679197874 6.8867e-06 deg
node 184.2798001215347 0.00014415 deg
peri 180.0214029295406 0.00014494 deg
M 76.08078438872164 1.8471e-05 deg
tp 2458329.466871157580
(2018-Jul-29.96687116)
6.6588e-05 TDB
period 1282.477923528551
3.51
1.5444e-05
4.228e-08
d
yr
n .2807065863633055 3.3803e-09 deg/d
Q 2.859447270895325 2.2956e-08 au
  Orbit Determination Parameters
   # obs. used (total)      221  
   data-arc span      5204 days (14.25 yr)  
   first obs. used      2004-11-10  
   last obs. used      2019-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54494  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:10:17  

Additional Information
 Earth MOID = .757878 au 
 Jupiter MOID = 2.59727 au 
 T_jup = 3.545 
[ 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 17.2   n/a MPO455252  

305720 (2009 CM20)          Discovered 2009-Feb-01 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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