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442233 (2011 LR9)
Classification: Main-belt Asteroid          SPK-ID: 2442233
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06753852333859311 6.31e-08  
a 2.273921462462352 6.5412e-08 au
q 2.12034416469971 1.7059e-07 au
i 7.359205261569748 5.3615e-06 deg
node 129.9350455853241 5.1713e-05 deg
peri 111.1539310634357 0.00016019 deg
M 234.947765910316 0.00017678 deg
tp 2459435.561419189119
(2021-Aug-09.06141919)
0.0006328 TDB
period 1252.453521108289
3.43
5.4042e-05
1.48e-07
d
yr
n .2874358161262848 1.2403e-08 deg/d
Q 2.427498760224993 6.983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      4736 days (12.97 yr)  
   first obs. used      2007-02-08  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57581  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:40:28  

Additional Information
 Earth MOID = 1.11985 au 
 Jupiter MOID = 2.58734 au 
 T_jup = 3.597 
[ 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 17.2   n/a MPO368907  

442233 (2011 LR9)          Discovered 2011-Jun-06 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 LR9 = 2014 EZ33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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