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441777 (2009 DF45)
Classification: Main-belt Asteroid          SPK-ID: 2441777
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1794424622076531 1.1494e-07  
a 2.750295022145555 3.7674e-08 au
q 2.256775311574304 3.3147e-07 au
i 24.30326068038425 1.4661e-05 deg
node 352.5685002092627 1.4823e-05 deg
peri 228.9526440973102 4.7325e-05 deg
M 130.7653787460846 5.1645e-05 deg
tp 2458395.357540143840
(2018-Oct-03.85754014)
0.00023281 TDB
period 1665.97066927962
4.56
3.4232e-05
9.372e-08
d
yr
n .2160902389450032 4.4401e-09 deg/d
Q 3.243814732716805 4.4435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      287  
   data-arc span      6635 days (18.17 yr)  
   first obs. used      2000-03-03  
   last obs. used      2018-05-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51051  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:51:43  

Additional Information
 Earth MOID = 1.31114 au 
 Jupiter MOID = 1.89778 au 
 T_jup = 3.196 
[ 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 15.6   n/a MPO440828  

441777 (2009 DF45)          Discovered 2009-Feb-22 by LINEAR at Socorro
Reference: Last Updated: 2015-09-02

Alternate Designations
 2009 DF45 = 2001 QQ182 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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