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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06676368245607724 3.2502e-08  
a 2.995715229074976 1.6382e-08 au
q 2.79571024879218 9.3899e-08 au
i 11.69171366912693 9.4942e-07 deg
node 107.8982787702932 3.9884e-06 deg
peri 244.1972459040938 9.7004e-06 deg
M 101.5852396158593 1.0178e-05 deg
tp 2458666.086615928838
(2019-Jul-01.58661593)
5.1082e-05 TDB
period 1893.865870604127
5.19
1.5534e-05
4.253e-08
d
yr
n .1900873792530846 1.5592e-09 deg/d
Q 3.195720209357773 1.7475e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2088  
   data-arc span      8647 days (23.67 yr)  
   first obs. used      1997-07-11  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47757  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:15:25  

Additional Information
 Earth MOID = 1.80922 au 
 Jupiter MOID = 2.13748 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 13.17   n/a E2021B10  
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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