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437877 (2001 QE227)
Classification: Main-belt Asteroid          SPK-ID: 2437877
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1711036879238353 7.1911e-08  
a 2.325574832096936 1.4484e-08 au
q 1.927660401782296 1.6451e-07 au
i 8.653708221276476 5.8721e-06 deg
node 298.5669450456894 2.9353e-05 deg
peri 25.67995862094868 4.5045e-05 deg
M 117.450575446173 2.7046e-05 deg
tp 2458577.883398619422
(2019-Apr-04.38339862)
9.6312e-05 TDB
period 1295.370209290579
3.55
1.2102e-05
3.313e-08
d
yr
n .2779128294120312 2.5963e-09 deg/d
Q 2.723489262411576 1.6962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      181  
   data-arc span      6730 days (18.43 yr)  
   first obs. used      2001-08-16  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59946  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:15:38  

Additional Information
 Earth MOID = .918805 au 
 Jupiter MOID = 2.59107 au 
 T_jup = 3.540 
[ 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 17.4   n/a MPO503564  

437877 (2001 QE227)          Discovered 2001-Aug-24 by LONEOS at Anderson Mesa
Reference: Last Updated: 2015-07-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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