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17853 Ronaldsayer (1998 JK3)
Classification: Main-belt Asteroid          SPK-ID: 2017853
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .166814473539416 6.9044e-08  
a 3.11431098433419 4.0787e-08 AU
q 2.594798837044462 2.1834e-07 AU
i 6.358941099374681 6.7238e-06 deg
node 122.9086860980131 6.1809e-05 deg
peri 213.1922187074645 6.526e-05 deg
M 241.0552388357999 2.5878e-05 deg
tp 2457463.760617676250
(2016-Mar-16.26061768)
0.00015171 JED
period 2007.434543786499
5.50
3.9436e-05
1.08e-07
d
yr
n .1793333691074949 3.523e-09 deg/d
Q 3.633823131623918 4.759e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      8069 days (22.09 yr)  
   first obs. used      1992-03-05  
   last obs. used      2014-04-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52937  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:11:25  

Additional Information
 Earth MOID = 1.58659 AU 
 T_jup = 3.187 
[ 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 13.1 mag n/a MPO263506  

17853 Ronaldsayer           Discovered 1998 May 1 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Ronald W. Sayer (b. 1967), of the Massachusetts Institute of Technology's Lincoln Laboratory, is a data analyst for the Lincoln Near-Earth Asteroid Research program.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

[ show close-approach data ]
Alternate Designations
 1998 JK3 = 1999 RY57 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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