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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1608324211802504 4.9977e-08  
a 2.437171530169409 1.5691e-08 AU
q 2.045195332140687 1.1858e-07 AU
i 1.90828482799448 5.7065e-06 deg
node 216.7732799459403 0.00019646 deg
peri 218.865412145164 0.00019831 deg
M 278.6098017399667 2.6024e-05 deg
tp 2457114.693486062060
(2015-Apr-02.19348606)
0.00010178 JED
period 1389.72084354639
3.80
1.3421e-05
3.674e-08
d
yr
n .2590448302418247 2.5017e-09 deg/d
Q 2.829147728198131 1.8215e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1113  
   data-arc span      11507 days (31.50 yr)  
   first obs. used      1980-12-07  
   last obs. used      2012-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54403  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 15:30:22  

Additional Information
 Earth MOID = 1.05988 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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