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9239 van Riebeeck (1997 JP15)
Classification: Main-belt Asteroid          SPK-ID: 2009239
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2109204007591244 3.8615e-08  
a 2.324323603733357 1.1209e-08 au
q 1.834076337740025 8.8047e-08 au
i 1.951626193561929 5.4876e-06 deg
node 160.1359964269367 0.00012077 deg
peri 278.1590086368063 0.00012168 deg
M 238.0445128323601 1.5187e-05 deg
tp 2457838.972297775409
(2017-Mar-26.47229778)
5.641e-05 JED
period 1294.324928423818
3.54
9.3626e-06
2.563e-08
d
yr
n .2781372683893178 2.0119e-09 deg/d
Q 2.814570869726689 1.3573e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1108  
   data-arc span      12227 days (33.48 yr)  
   first obs. used      1982-01-19  
   last obs. used      2015-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53321  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:27:15  

Additional Information
 Earth MOID = .850141 au 
 Jupiter MOID = 2.45093 au 
 T_jup = 3.545 
[ 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 14.5 mag n/a MPO240278  

9239 van Riebeeck           Discovered 1997 May 3 by E. W. Elst at the European Southern Observatory.
Jan Anthoniszoon van Riebeeck (1619-1677), formerly an assistant surgeon, was sent by the Dutch authorities to southern Africa in 1652 to establish at Table Bay a fort and provisioning station for ships traveling to the East Indies. The station grew to become Cape Town.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1997 JP15 = 1982 BM9 = 1991 RR34 = 1993 FN59 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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