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JPL Small-Body Database Browser
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172090 Davidmccomas (2002 CL257)
Classification: Outer Main-belt Asteroid          SPK-ID: 2172090
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1083193741538685 9.8576e-08  
a 3.217830125919507 4.459e-08 au
q 2.869276780546442 3.3117e-07 au
i 1.796095894255547 7.9792e-06 deg
node 148.3300303913068 0.00021038 deg
peri 67.80183038560213 0.00021315 deg
M 280.1223330270765 3.8702e-05 deg
tp 2459068.306193997346
(2020-Aug-06.80619400)
0.00023127 TDB
period 2108.351886343041
5.77
4.3823e-05
1.2e-07
d
yr
n .1707494855730292 3.5491e-09 deg/d
Q 3.566383471292572 4.942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      6175 days (16.91 yr)  
   first obs. used      2002-02-06  
   last obs. used      2019-01-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59458  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 16:27:30  

Additional Information
 Earth MOID = 1.86311 au 
 Jupiter MOID = 1.40163 au 
 T_jup = 3.180 
[ 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 15.6   n/a MPO427050  

172090 Davidmccomas           Discovered 2002 Feb. 6 by M. W. Buie at Kitt Peak.
David J. McComas (b. 1958), a Professor of Astrophysical Sciences at Princeton University, served as a Co-Investigator on the Particles and Plasma Science Team 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 ]
Alternate Designations
 2002 CL257 = 2006 WS111 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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