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JPL Small-Body Database Browser
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441658 (2008 WQ91)
Classification: Main-belt Asteroid          SPK-ID: 2441658
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07110236874089383 1.416e-07  
a 2.653909039918007 6.7426e-08 au
q 2.465209820756965 4.1332e-07 au
i 22.81735151130867 1.0876e-05 deg
node 116.5080639135797 2.1683e-05 deg
peri 313.5567218985757 7.1664e-05 deg
M 187.7189698452622 5.9951e-05 deg
tp 2459356.222646411387
(2021-May-21.72264641)
0.00025916 TDB
period 1579.164882307371
4.32
6.0181e-05
1.648e-07
d
yr
n .2279685953210863 8.6878e-09 deg/d
Q 2.842608259079048 7.2221e-08 au
  Orbit Determination Parameters
   # obs. used (total)      87  
   data-arc span      6216 days (17.02 yr)  
   first obs. used      2002-06-20  
   last obs. used      2019-06-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64816  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:15  

Additional Information
 Earth MOID = 1.51369 au 
 Jupiter MOID = 2.35351 au 
 T_jup = 3.274 
[ 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 16.5   n/a MPO437716  

441658 (2008 WQ91)          Discovered 2008-Nov-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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