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6638 (1989 CA)
Classification: Main-belt Asteroid          SPK-ID: 2006638
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1607849598836222 4.0614e-08  
a 2.436796808835264 1.2761e-08 AU
q 2.044996531682147 9.9776e-08 AU
i 1.908468013562334 5.4276e-06 deg
node 216.7700919837073 0.00016845 deg
peri 218.9173585990637 0.00017008 deg
M 330.3773069286782 2.1385e-05 deg
tp 2457114.827166689451
(2015-Apr-02.32716669)
8.2637e-05 JED
period 1389.400346184188
3.80
1.0914e-05
2.988e-08
d
yr
n .2591045849302501 2.0353e-09 deg/d
Q 2.82859708598838 1.4813e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1348  
   data-arc span      12510 days (34.25 yr)  
   first obs. used      1980-12-07  
   last obs. used      2015-03-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48429  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:25:48  

Additional Information
 Earth MOID = 1.06018 AU 
 T_jup = 3.485 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a PDS3 (MPC 28115)  

6638 (1989 CA)          Discovered 1989-Feb-02 by Arai, M., Mori, H. at Yorii
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 CA = 1980 XV 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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