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20746 (2000 AL186)
Classification: Main-belt Asteroid          SPK-ID: 2020746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1023493545843946 3.3651e-08  
a 2.727811570241256 1.0699e-08 au
q 2.448621816599219 9.2914e-08 au
i 12.52880924862815 3.1188e-06 deg
node 158.6991402494442 1.7741e-05 deg
peri 106.7615914201067 2.47e-05 deg
M 23.37550987583934 1.6487e-05 deg
tp 2459093.649005298012
(2020-Sep-01.14900530)
7.5417e-05 TDB
period 1645.583702645729
4.51
9.6812e-06
2.651e-08
d
yr
n .2187673586103221 1.287e-09 deg/d
Q 3.007001323883292 1.1794e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1769  
   data-arc span      11888 days (32.55 yr)  
   first obs. used      1988-03-13  
   last obs. used      2020-09-29  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48307  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:29:56  

Additional Information
 Earth MOID = 1.46638 au 
 Jupiter MOID = 2.1686 au 
 T_jup = 3.314 
[ 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 14.02   n/a E2021B10  
diameter diameter 4.253 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.186   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20746 (2000 AL186)          Discovered 2000-Jan-08 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 AL186 = 1988 EZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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