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201204 Stevewilliams (2002 PZ148)
Classification: Main-belt Asteroid          SPK-ID: 2201204
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06580586442851025 6.4931e-08  
a 3.053424922394669 3.511e-08 au
q 2.852491655908931 1.9989e-07 au
i 1.611394936716616 6.7895e-06 deg
node 269.2476852377397 0.00028719 deg
peri 55.06365169630722 0.00029317 deg
M 127.6912840480748 5.9438e-05 deg
tp 2458309.245376145449
(2018-Jul-09.74537615)
0.00031978 TDB
period 1948.853960102303
5.34
3.3613e-05
9.203e-08
d
yr
n .1847239492389169 3.1861e-09 deg/d
Q 3.254358188880407 3.742e-08 au
  Orbit Determination Parameters
   # obs. used (total)      129  
   data-arc span      6341 days (17.36 yr)  
   first obs. used      2002-08-10  
   last obs. used      2019-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65627  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 05:07:00  

Additional Information
 Earth MOID = 1.84059 au 
 Jupiter MOID = 1.96648 au 
 T_jup = 3.232 
[ 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 16.6   n/a MPO454423  

201204 Stevewilliams           Discovered 2002 Aug. 10 by M. W. Buie at Cerro Tololo.
Stephen P. Williams (b. 1953) is a software engineer at the Johns Hopkins University Applied Physics Laboratory. He served as the Command and Data Handling Engineering Lead for the New Horizons Mission to Pluto.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2018-05-29Last Updated: 2018-09-17

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