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8359 (1989 WD)
Classification: Main-belt Asteroid          SPK-ID: 2008359
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06570789750474662 6.3712e-08  
a 2.350073545086099 1.0824e-08 au
q 2.195655153456965 1.5275e-07 au
i 7.634714647885342 5.4945e-06 deg
node 63.24945811643871 3.7426e-05 deg
peri 128.1733506334988 5.182e-05 deg
M 23.69798301403321 3.4825e-05 deg
tp 2457513.877743987208
(2016-May-05.37774399)
0.00012725 JED
period 1315.893092932793
3.60
9.0915e-06
2.489e-08
d
yr
n .2735784555245677 1.8901e-09 deg/d
Q 2.504491936715233 1.1536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1467  
   data-arc span      9668 days (26.47 yr)  
   first obs. used      1989-10-26  
   last obs. used      2016-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50183  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:02:06  

Additional Information
 Earth MOID = 1.20165 au 
 Jupiter MOID = 2.46673 au 
 T_jup = 3.543 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.3 mag n/a MPO332898  
rotation period rot_per 2.89111 h n/a LCDB (Rev. 2016-February); Warner et al., 2009 Published Reference List:
[Higgins, D.; Warner, B.D. (2009) Minor Planet Bul. 36, 159-160.]
[Brinsfield, J.W. (2009) Minor Planet Bul. 36, 169.]

[ show close-approach data ]
Alternate Designations
 1989 WD = 1991 HB 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ]
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