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442254 (2011 PL2)
Classification: Main-belt Asteroid          SPK-ID: 2442254
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 .08114917735848202 6.7459e-08  
a 2.631783621968987 3.6314e-08 au
q 2.418216546060677 1.7812e-07 au
i 10.28467780470905 1.2345e-05 deg
node 286.6686911136974 4.0355e-05 deg
peri 276.9921433500562 9.7964e-05 deg
M 139.7293144578244 8.7719e-05 deg
tp 2458395.216654624808
(2018-Oct-03.71665462)
0.00038311 TDB
period 1559.458050592812
4.27
3.2276e-05
8.837e-08
d
yr
n .2308494286609054 4.7779e-09 deg/d
Q 2.845350697877297 3.926e-08 au
  Orbit Determination Parameters
   # obs. used (total)      102  
   data-arc span      6295 days (17.23 yr)  
   first obs. used      2000-12-23  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54986  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:46:26  

Additional Information
 Earth MOID = 1.44004 au 
 Jupiter MOID = 2.24283 au 
 T_jup = 3.372 
[ 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 17.0   n/a MPO437720  

442254 (2011 PL2)          Discovered 2004-Dec-20 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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