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JPL Small-Body Database Browser
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172597 (2003 WC28)
Classification: Main-belt Asteroid          SPK-ID: 2172597
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06944639787829066 4.612e-08  
a 2.781277192269977 2.4128e-08 au
q 2.588127509765781 1.2795e-07 au
i 3.073829146966238 4.9805e-06 deg
node 303.6920889976091 0.00010994 deg
peri 210.573003796079 0.00011999 deg
M 110.1892197829124 4.5489e-05 deg
tp 2458481.937096138682
(2018-Dec-29.43709614)
0.00021393 TDB
period 1694.200628317947
4.64
2.2046e-05
6.036e-08
d
yr
n .2124895918362507 2.7651e-09 deg/d
Q 2.974426874774172 2.5804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      349  
   data-arc span      7039 days (19.27 yr)  
   first obs. used      2000-01-02  
   last obs. used      2019-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5677  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:42:18  

Additional Information
 Earth MOID = 1.59876 au 
 Jupiter MOID = 2.01936 au 
 T_jup = 3.327 
[ 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 16.0   n/a MPO436858  
diameter diameter 4.029 km 0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

172597 (2003 WC28)          Discovered 2003-Nov-16 by Spacewatch at Kitt Peak
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2003 WC28 = 2000 AO247 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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