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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .15563211401977 4.4769e-08  
a 2.31310607544411 9.1332e-09 au
q 1.95311248697077 1.0492e-07 au
i 4.607708961658061 4.7277e-06 deg
node 72.91941958211852 5.0873e-05 deg
peri 1.430825076704383 5.3003e-05 deg
M 199.0360845545324 1.4376e-05 deg
tp 2459775.036702883253
(2022-Jul-14.53670288)
5.2688e-05 TDB
period 1284.966338359502
3.52
7.6105e-06
2.084e-08
d
yr
n .2801629811249428 1.6593e-09 deg/d
Q 2.673099663917451 1.0555e-08 au
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      8219 days (22.50 yr)  
   first obs. used      1997-11-23  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58692  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:02  

Additional Information
 Earth MOID = .967623 au 
 Jupiter MOID = 2.57937 au 
 T_jup = 3.562 
[ 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 16.38   n/a E2021B55  

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

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