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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06582524960989378 6.4306e-08  
a 2.349624113530091 1.4801e-08 AU
q 2.194959519767548 1.5338e-07 AU
i 7.634571609056246 7.0168e-06 deg
node 63.28568339881933 3.8281e-05 deg
peri 128.7193687405697 6.0642e-05 deg
M 218.994594885604 4.9313e-05 deg
tp 2457515.763373547926
(2016-May-07.26337355)
0.00018268 JED
period 1315.515630955874
3.60
1.2431e-05
3.403e-08
d
yr
n .2736569536147727 2.5859e-09 deg/d
Q 2.504288707292635 1.5776e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1256  
   data-arc span      9272 days (25.39 yr)  
   first obs. used      1989-10-26  
   last obs. used      2015-03-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50632  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 16:31:28  

Additional Information
 Earth MOID = 1.20248 AU 
 T_jup = 3.544 
[ 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. 2015-May); 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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