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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06595129223326567 6.3886e-08  
a 2.35061551357718 1.4051e-08 au
q 2.195589382913203 1.5294e-07 au
i 7.633397095508745 6.7772e-06 deg
node 63.26726812513101 3.7614e-05 deg
peri 128.3282219831216 5.848e-05 deg
M 328.8426077057628 4.7058e-05 deg
tp 2457514.427725133896
(2016-May-05.92772513)
0.00017255 JED
period 1316.348321479659
3.60
1.1803e-05
3.231e-08
d
yr
n .2734838447587621 2.4522e-09 deg/d
Q 2.505641644241156 1.4978e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      9548 days (26.14 yr)  
   first obs. used      1989-10-26  
   last obs. used      2015-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5093  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:07:11  

Additional Information
 Earth MOID = 1.20166 au 
 Jupiter MOID = 2.46518 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. 2015-December); 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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