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442351 (2011 SF228)
Classification: Main-belt Asteroid          SPK-ID: 2442351
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 .1805838445166469 3.3541e-07  
a 2.615302663204179 1.5776e-07 au
q 2.143021253708143 1.002e-06 au
i 4.578094725661821 1.0235e-05 deg
node 299.748330440679 0.00011269 deg
peri 10.21929358800502 0.00019907 deg
M 68.34203810924959 0.00010486 deg
tp 2458707.230575829055
(2019-Aug-11.73057583)
0.0004752 TDB
period 1544.832369979486
4.23
0.00013978
3.827e-07
d
yr
n .2330349926605827 2.1086e-08 deg/d
Q 3.087584072700215 1.8625e-07 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      4342 days (11.89 yr)  
   first obs. used      2007-11-05  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .59242  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:41  

Additional Information
 Earth MOID = 1.12866 au 
 Jupiter MOID = 2.17703 au 
 T_jup = 3.380 
[ 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 17.7   n/a MPO495191  

442351 (2011 SF228)          Discovered 2007-Nov-05 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SF228 = 2007 VS120 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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