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180939 (2005 LE51)
Classification: Main-belt Asteroid          SPK-ID: 2180939
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2275879284520244 5.0146e-08  
a 2.7860912215715 1.2982e-08 au
q 2.152010491975672 1.3887e-07 au
i 7.170453338013366 4.8388e-06 deg
node 119.0878475560698 3.9807e-05 deg
peri 183.681659043961 4.1248e-05 deg
M 119.2805432849568 1.0141e-05 deg
tp 2458637.694241399846
(2019-Jun-03.19424140)
4.7012e-05 TDB
period 1698.601192753017
4.65
1.1872e-05
3.25e-08
d
yr
n .2119390952602171 1.4813e-09 deg/d
Q 3.420171951167328 1.5937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      482  
   data-arc span      10762 days (29.46 yr)  
   first obs. used      1991-08-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56801  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:28:35  

Additional Information
 Earth MOID = 1.1347 au 
 Jupiter MOID = 1.83212 au 
 T_jup = 3.282 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO433178  
diameter diameter 1.991 km 0.470 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.234   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

180939 (2005 LE51)          Discovered 2005-Jun-13 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Alternate Designations
 2005 LE51 = 1991 PO22 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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