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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07145303965491533 1.4273e-07  
a 2.651341607119496 6.8025e-08 au
q 2.46189519012726 4.1695e-07 au
i 22.83456856175456 1.0878e-05 deg
node 116.4950133490856 2.1665e-05 deg
peri 314.4775533805959 7.0442e-05 deg
M 278.0035392121481 5.835e-05 deg
tp 2459359.661324310008
(2021-May-25.16132431)
0.00025428 TDB
period 1576.873873692348
4.32
6.0686e-05
1.661e-07
d
yr
n .2282998063485177 8.7861e-09 deg/d
Q 2.840788024111733 7.2885e-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 = 1.50916 au 
 Jupiter MOID = 2.3521 au 
 T_jup = 3.275 
[ 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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