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120684 (1997 CA9)
Classification: Main-belt Asteroid          SPK-ID: 2120684
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2279063235531509 4.6358e-08  
a 2.717621440140985 1.8312e-08 au
q 2.098258328909234 1.2581e-07 au
i 6.416980199118467 8.9335e-06 deg
node 332.4378996459913 4.5619e-05 deg
peri 85.14300604303848 5.0503e-05 deg
M 179.7388678279644 2.061e-05 deg
tp 2458383.501295110327
(2018-Sep-22.00129511)		 9.0598e-05 TDB
period 1636.371349806189
4.48		 1.6539e-05
4.528e-08		 d
yr
n .2199989629753896 2.2236e-09 deg/d
Q 3.336984551372737 2.2485e-08 au
   Orbit Determination Parameters
   # obs. used (total)      356  
   data-arc span      8486 days (23.23 yr)  
   first obs. used      1997-02-01  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60486  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:39:27  

Additional Information
 Earth MOID = 1.12118 au 
 Jupiter MOID = 2.08195 au 
 T_jup = 3.313 
[ 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 16.36   n/a E2021B55  

120684 (1997 CA9)          Discovered 1997-Feb-01 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1997 CA9 = 2000 XX6 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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