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

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1650637413822847 4.0997e-08  
a 2.777472772473223 1.2899e-08 au
q 2.319012725061365 1.1584e-07 au
i 8.356069857180389 3.8787e-06 deg
node 241.0898573716575 3.135e-05 deg
peri 146.0441061166372 3.3392e-05 deg
M 210.6656498841944 1.3486e-05 deg
tp 2459901.842824069117
(2022-Nov-18.34282407)
6.6116e-05 TDB
period 1690.72565333486
4.63
1.1778e-05
3.225e-08
d
yr
n .212926325030865 1.4833e-09 deg/d
Q 3.235932819885081 1.5028e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2127  
   data-arc span      21045 days (57.62 yr)  
   first obs. used      1962-12-01  
   last obs. used      2020-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4425  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:23:17  

Additional Information
 Earth MOID = 1.32857 au 
 Jupiter MOID = 2.22679 au 
 T_jup = 3.299 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.04   n/a E2021B10  
diameter diameter 7.114 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 39.0635 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.265   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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