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JPL Small-Body Database Browser
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17853 Ronaldsayer (1998 JK3)
Classification: Main-belt Asteroid          SPK-ID: 2017853
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1674883289865834 5.5851e-08  
a 3.113634467305443 2.2458e-08 au
q 2.592137033301424 1.7145e-07 au
i 6.360483797082265 4.7747e-06 deg
node 122.8967739578734 4.8942e-05 deg
peri 212.7533057206133 5.1839e-05 deg
M 204.1631254911838 2.1341e-05 deg
tp 2459469.195545796839
(2021-Sep-11.69554580)
0.00012395 TDB
period 2006.780471390742
5.49
2.1712e-05
5.944e-08
d
yr
n .1793918194502422 1.9409e-09 deg/d
Q 3.635131901309463 2.622e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1403  
   data-arc span      9919 days (27.16 yr)  
   first obs. used      1992-03-05  
   last obs. used      2019-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51935  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:33:20  

Additional Information
 Earth MOID = 1.58408 au 
 Jupiter MOID = 1.74113 au 
 T_jup = 3.187 
[ 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 13.2   n/a MPO474003  
diameter diameter 11.982 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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