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268660 (2006 EX20)
Classification: Main-belt Asteroid          SPK-ID: 2268660
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1461964577905946 1.2707e-07  
a 2.919156016974697 2.7408e-08 au
q 2.492385747554895 3.7366e-07 au
i 6.958718579076514 9.7823e-06 deg
node 345.7010801526571 4.3961e-05 deg
peri 203.0555321033324 4.87e-05 deg
M 286.7919094505001 2.3803e-05 deg
tp 2459370.959695932581
(2021-Jun-05.45969593)
0.00012323 TDB
period 1821.731580958986
4.99
2.5656e-05
7.024e-08
d
yr
n .1976141840887946 2.7831e-09 deg/d
Q 3.345926286394498 3.1415e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      8712 days (23.85 yr)  
   first obs. used      1996-03-17  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63636  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 13:05:45  

Additional Information
 Earth MOID = 1.4954 au 
 Jupiter MOID = 1.63224 au 
 T_jup = 3.253 
[ 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 16.4   n/a MPO454996  
diameter diameter 3.711 km 0.942 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

268660 (2006 EX20)          Discovered 2006-Mar-03 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ show close-approach data ]
Alternate Designations
 2006 EX20 = 1996 FE6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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