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JPL Small-Body Database Browser
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441657 (2008 WH90)
Classification: Main-belt Asteroid          SPK-ID: 2441657
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2100208878135486 8.0957e-08  
a 2.464542496377559 3.6896e-08 au
q 1.946937093234125 1.8874e-07 au
i 4.030248135457493 7.1311e-06 deg
node 59.03683577126287 0.00026396 deg
peri 13.48025542672251 0.00027574 deg
M 1.154797401269238 8.6496e-05 deg
tp 2458995.966786319788
(2020-May-26.46678632)
0.00033946 TDB
period 1413.197607721087
3.87
3.1735e-05
8.689e-08
d
yr
n .2547414445319742 5.7206e-09 deg/d
Q 2.982147899520993 4.4645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      69  
   data-arc span      6869 days (18.81 yr)  
   first obs. used      2000-12-04  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52824  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 15:58:31  

Additional Information
 Earth MOID = .961903 au 
 Jupiter MOID = 2.30791 au 
 T_jup = 3.454 
[ 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 18.1   n/a MPO495188  

441657 (2008 WH90)          Discovered 2008-Nov-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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