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441539 (2008 SP309)
Classification: Main-belt Asteroid          SPK-ID: 2441539
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 .1837684422774228 9.5396e-08  
a 2.447525232825794 1.8037e-08 au
q 1.997747333354711 2.4071e-07 au
i 2.319670533586718 6.3053e-06 deg
node 48.00092769842576 0.00029975 deg
peri 356.0433247850754 0.00030253 deg
M 11.33852038185036 4.068e-05 deg
tp 2458956.450287526321
(2020-Apr-16.95028753)
0.0001578 TDB
period 1398.586055011914
3.83
1.546e-05
4.233e-08
d
yr
n .2574028238805322 2.8454e-09 deg/d
Q 2.897303132296877 2.1351e-08 au
  Orbit Determination Parameters
   # obs. used (total)      87  
   data-arc span      9346 days (25.59 yr)  
   first obs. used      1994-01-21  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49072  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:42:11  

Additional Information
 Earth MOID = 1.00679 au 
 Jupiter MOID = 2.49984 au 
 T_jup = 3.473 
[ 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 17.8   n/a MPO495187  

441539 (2008 SP309)          Discovered 2008-Sep-22 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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