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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1669418130010556 6.152e-08  
a 3.116135409158307 3.8162e-08 au
q 2.595922114396633 1.9432e-07 au
i 6.358412649178196 5.6678e-06 deg
node 122.9043808187277 5.7467e-05 deg
peri 212.985860429843 6.1233e-05 deg
M 24.64340084971186 2.8648e-05 deg
tp 2457462.962524240094
(2016-Mar-15.46252424)
0.00015819 JED
period 2009.198794254283
5.50
3.6909e-05
1.011e-07
d
yr
n .1791758988854134 3.2914e-09 deg/d
Q 3.63634870391998 4.4533e-08 au
  Orbit Determination Parameters
   # obs. used (total)      956  
   data-arc span      8151 days (22.32 yr)  
   first obs. used      1992-03-05  
   last obs. used      2014-06-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51129  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:36:56  

Additional Information
 Earth MOID = 1.58811 au 
 Jupiter MOID = 1.73294 au 
 T_jup = 3.186 
[ 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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