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JPL Small-Body Database Browser
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390535 (1999 CW89)
Classification: Main-belt Asteroid          SPK-ID: 2390535
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2602545108630939 5.0687e-08  
a 2.379514572399756 1.8316e-08 au
q 1.760235171268254 1.2118e-07 au
i 8.6414414078115 6.2047e-06 deg
node 92.23670330229334 4.6121e-05 deg
peri 37.84735805946494 4.9366e-05 deg
M 183.6410266157045 2.1548e-05 deg
tp 2459257.289258349773
(2021-Feb-11.78925835)
8.6396e-05 TDB
period 1340.69805731231
3.67
1.548e-05
4.238e-08
d
yr
n .268516835715933 3.1003e-09 deg/d
Q 2.998793973531259 2.3083e-08 au
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      7586 days (20.77 yr)  
   first obs. used      1999-01-19  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6337  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 12:58:40  

Additional Information
 Earth MOID = .784627 au 
 Jupiter MOID = 2.09716 au 
 T_jup = 3.478 
[ 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 16.9   n/a MPO455775  
diameter diameter 0.990 km 0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.286   0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

390535 (1999 CW89)          Discovered 1999-Feb-10 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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