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100648 (1997 WZ2)
Classification: Main-belt Asteroid          SPK-ID: 2100648
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1559740882532551 4.4779e-08  
a 2.312452944083836 9.302e-09 au
q 1.951770204501804 1.0492e-07 au
i 4.608504974541969 4.7514e-06 deg
node 72.919654833807 5.2575e-05 deg
peri 1.446618514987457 5.4842e-05 deg
M 142.9654146312664 1.4617e-05 deg
tp 2458490.422378369443
(2019-Jan-06.92237837)		 5.1347e-05 TDB
period 1284.42213986236
3.52		 7.75e-06
2.122e-08		 d
yr
n .2802816837450171 1.6912e-09 deg/d
Q 2.673135683665868 1.0753e-08 au
   Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      8191 days (22.43 yr)  
   first obs. used      1997-11-23  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59517  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 17:54:27  

Additional Information
 Earth MOID = .966762 au 
 Jupiter MOID = 2.57929 au 
 T_jup = 3.563 
[ show covariance matrix ]

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Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO469012  

100648 (1997 WZ2)          Discovered 1997-Nov-23 by Kobayashi, T. at Oizumi
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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