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20460 Robwhiteley (1999 LO28)
Classification: Amor [NEO]          SPK-ID: 2020460
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 126 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .411984710407837 4.1073e-08  
a 1.876904425902553 1.0299e-08 AU
q 1.103648499533902 8.0486e-08 AU
i 33.93856924272887 9.0679e-06 deg
node 280.1063680881692 8.0339e-06 deg
peri 283.6302578747559 1.3233e-05 deg
M 43.5040496229007 1.909e-05 deg
tp 2456887.001832571687
(2014-Aug-17.50183257)
4.8977e-05 JED
period 939.2077433794641
2.57
7.7302e-06
2.116e-08
d
yr
n .3833017801840575 3.1548e-09 deg/d
Q 2.650160352271204 1.4542e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      742  
   data-arc span      21649 days (59.27 yr)  
   first obs. used      1954-12-30  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55558  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:43:04  

Additional Information
 Earth MOID = .331404 AU 
 T_jup = 3.680 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1 mag n/a MPO290619  

20460 Robwhiteley           Discovered 1999 June 13 by the Catalina Sky Survey.
Robert J. Whiteley (b. 1971) is a member of the University of Hawaii Aten Survey and the Catalina Sky Survey. He has also done research into the rotational properties of small, rapidly spinning minor planets and the taxonomic classification of near-earth asteroids.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030106/MPCPages.arcLast Updated: 2003-10-02

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