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20226 (1997 NG6)
Classification: Main-belt Asteroid          SPK-ID: 2020226
[ 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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06666395866417534 4.7747e-08  
a 2.995036503318357 1.8581e-08 au
q 2.795375513663446 1.3988e-07 au
i 11.69205567338304 3.9408e-06 deg
node 107.8976060234252 2.3675e-05 deg
peri 244.0187946265003 3.9358e-05 deg
M 63.75066503281136 3.1298e-05 deg
tp 2458665.238390537660
(2019-Jun-30.73839054)		 0.00016495 TDB
period 1893.22228002364
5.18		 1.7618e-05
4.824e-08		 d
yr
n .1901519984201246 1.7695e-09 deg/d
Q 3.194697492973269 1.9819e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1816  
   data-arc span      8513 days (23.31 yr)  
   first obs. used      1997-07-11  
   last obs. used      2020-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49762  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:04:03  

Additional Information
 Earth MOID = 1.81056 au 
 Jupiter MOID = 2.13816 au 
 T_jup = 3.220 
[ 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 13.1   n/a MPO358824  
diameter diameter 8.491 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.155   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20226 (1997 NG6)          Discovered 1997-Jul-11 by Williams, K. A. at Lake Clear
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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