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442366 (2011 SP250)
Classification: Main-belt Asteroid          SPK-ID: 2442366
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554082853131472 5.7392e-08  
a 2.682787720886521 4.5933e-08 au
q 2.26586028132438 1.6412e-07 au
i 4.439275639918453 7.9167e-06 deg
node 17.10125841576768 0.00013658 deg
peri 15.93935916794117 0.00014613 deg
M 333.6544693748347 5.544e-05 deg
tp 2459117.957929520057
(2020-Sep-25.45792952)
0.00024896 TDB
period 1605.010551081103
4.39
4.122e-05
1.129e-07
d
yr
n .2242975909145963 5.7604e-09 deg/d
Q 3.099715160448661 5.3072e-08 au
  Orbit Determination Parameters
   # obs. used (total)      74  
   data-arc span      4717 days (12.91 yr)  
   first obs. used      2004-02-17  
   last obs. used      2017-01-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54867  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:29:21  

Additional Information
 Earth MOID = 1.27223 au 
 Jupiter MOID = 2.34197 au 
 T_jup = 3.354 
[ 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 MPO349188  

442366 (2011 SP250)          Discovered 2007-Nov-18 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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