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JPL Small-Body Database Browser
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185621 (2008 CA121)
Classification: Main-belt Asteroid          SPK-ID: 2185621
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1391153331731777 3.6925e-08  
a 2.705658866839305 2.5527e-08 au
q 2.329260232125993 1.0056e-07 au
i 13.12387275691816 4.3246e-06 deg
node 139.6020415220273 2.1082e-05 deg
peri 3.267662688900208 2.7564e-05 deg
M 299.2993730301038 2.034e-05 deg
tp 2459274.593452866752
(2021-Mar-01.09345287)
9.3877e-05 TDB
period 1625.578646509972
4.45
2.3005e-05
6.298e-08
d
yr
n .2214596019533722 3.1341e-09 deg/d
Q 3.082057501552618 2.9078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      366  
   data-arc span      5668 days (15.52 yr)  
   first obs. used      2004-04-24  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54537  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 20:51:44  

Additional Information
 Earth MOID = 1.34218 au 
 Jupiter MOID = 1.93856 au 
 T_jup = 3.314 
[ 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 15.9   n/a MPO454278  

185621 (2008 CA121)          Discovered 2008-Feb-06 by CSS at Catalina
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

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