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100667 (1997 WH40)
Classification: Main-belt Asteroid          SPK-ID: 2100667
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1709069899903814 4.93e-08  
a 2.446362726734127 1.0347e-08 au
q 2.028262236683335 1.1866e-07 au
i .9542023941948019 4.4167e-06 deg
node 180.6722358381804 0.00023719 deg
peri 230.2356823748428 0.0002379 deg
M 19.74457995898183 1.3101e-05 deg
tp 2459123.847715668232
(2020-Oct-01.34771567)
5.1018e-05 TDB
period 1397.589739400029
3.83
8.8665e-06
2.428e-08
d
yr
n .2575863215442211 1.6342e-09 deg/d
Q 2.864463216784919 1.2115e-08 au
  Orbit Determination Parameters
   # obs. used (total)      726  
   data-arc span      8450 days (23.13 yr)  
   first obs. used      1997-11-29  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61433  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:55  

Additional Information
 Earth MOID = 1.03822 au 
 Jupiter MOID = 2.49971 au 
 T_jup = 3.478 
[ 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 16.1   n/a MPO436469  

100667 (1997 WH40)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 WH40 = 2001 XG65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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