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100661 (1997 WZ26)
Classification: Main-belt Asteroid          SPK-ID: 2100661
[ 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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2259097210187904 4.4289e-08  
a 2.645137563160637 1.2308e-08 au
q 2.047575274210694 1.1715e-07 au
i 7.219446395178267 4.4479e-06 deg
node 85.56649084430585 3.5597e-05 deg
peri 346.0450859136682 3.7019e-05 deg
M 98.42616935736659 9.9333e-06 deg
tp 2458570.885526995747
(2019-Mar-28.38552700)		 4.1949e-05 TDB
period 1571.342370543608
4.30		 1.0968e-05
3.003e-08		 d
yr
n .2291034765870008 1.5991e-09 deg/d
Q 3.242699852110579 1.5089e-08 au
   Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      8188 days (22.42 yr)  
   first obs. used      1997-11-28  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50044  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:54:28  

Additional Information
 Earth MOID = 1.06319 au 
 Jupiter MOID = 2.05379 au 
 T_jup = 3.345 
[ 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 16.28   n/a E2021B55  

100661 (1997 WZ26)          Discovered 1997-Nov-28 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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