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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1710259381387018 4.8733e-08  
a 2.446657626995576 1.027e-08 au
q 2.028215711034448 1.1707e-07 au
i .954272318876869 4.1976e-06 deg
node 180.6614012145212 0.00023517 deg
peri 230.2572714844541 0.00023588 deg
M 70.20771508185521 1.2887e-05 deg
tp 2459123.890763701226
(2020-Oct-01.39076370)
5.0612e-05 TDB
period 1397.842458669079
3.83
8.8014e-06
2.41e-08
d
yr
n .2575397518993414 1.6216e-09 deg/d
Q 2.865099542956705 1.2027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      738  
   data-arc span      8475 days (23.20 yr)  
   first obs. used      1997-11-29  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61032  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 00:00:29  

Additional Information
 Earth MOID = 1.03852 au 
 Jupiter MOID = 2.5 au 
 T_jup = 3.478 
[ 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 16.22   n/a MPCxxxxx  

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

Alternate Designations
 1997 WH40 = 2001 XG65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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