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101618 (1999 CN9)
Classification: Main-belt Asteroid          SPK-ID: 2101618
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2346571423850899 4.8076e-08  
a 2.382526844394449 1.0026e-08 au
q 1.823449903433082 1.1496e-07 au
i 9.428953507399601 6.2382e-06 deg
node 19.68243454137604 3.1097e-05 deg
peri 66.11090017747244 3.3808e-05 deg
M 331.7751077461799 1.2325e-05 deg
tp 2459105.813712509486
(2020-Sep-13.31371251)
4.6157e-05 TDB
period 1343.244684956543
3.68
8.4792e-06
2.321e-08
d
yr
n .2680077606349485 1.6918e-09 deg/d
Q 2.941603785355817 1.2379e-08 au
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      7922 days (21.69 yr)  
   first obs. used      1999-02-14  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5712  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:59:30  

Additional Information
 Earth MOID = .862401 au 
 Jupiter MOID = 2.37321 au 
 T_jup = 3.482 
[ 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 15.5   n/a MPO453469  

101618 (1999 CN9)          Discovered 1999-Feb-14 by Kobayashi, T. at Oizumi
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 CN9 = 2001 RO88 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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