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20524 Bustersikes (1999 RJ42)
Classification: Main-belt Asteroid          SPK-ID: 2020524
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630359828228344 9.1633e-08  
a 2.781553785586654 2.2539e-08 AU
q 2.328060430378958 2.4921e-07 AU
i 8.348851948872413 8.644e-06 deg
node 241.1965800665964 4.3167e-05 deg
peri 146.4768843185867 4.8167e-05 deg
M 101.9979170964698 1.9191e-05 deg
tp 2456520.414684413845
(2013-Aug-15.91468441)
9.0186e-05 JED
period 1694.45336268536
4.64
2.0595e-05
5.639e-08
d
yr
n .2124578981799027 2.5823e-09 deg/d
Q 3.235047140794349 2.6214e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      921  
   data-arc span      19000 days (52.02 yr)  
   first obs. used      1962-12-01  
   last obs. used      2014-12-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49852  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:46:55  

Additional Information
 Earth MOID = 1.33853 AU 
 T_jup = 3.298 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO279728  

20524 Bustersikes           Discovered 1999 Sept. 13 by C. W. Juels at Fountain Hills.
Leon R. Sikes, III ("Buster", b. 1959), is a Florida businessman and amateur astronomer. Since 1999 he has coordinated an ongoing minor-planet astrometry program at Jupiter Observatory using automated equipment.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031110/MPCPages.arcLast Updated: 2003-11-12

Alternate Designations
 1999 RJ42 = 1962 XD 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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