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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2112722911268668 3.8809e-08  
a 2.323901187433297 1.1426e-08 AU
q 1.832925259211818 8.8379e-08 AU
i 1.951512896010017 6.051e-06 deg
node 160.1440874903167 0.00012086 deg
peri 278.1684787438048 0.000122 deg
M 71.09843572185871 1.5328e-05 deg
tp 2456544.946132094032
(2013-Sep-09.44613209)
5.4365e-05 JED
period 1293.972103775327
3.54
9.5428e-06
2.613e-08
d
yr
n .2782131074925454 2.0518e-09 deg/d
Q 2.814877115654776 1.384e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1076  
   data-arc span      11839 days (32.41 yr)  
   first obs. used      1982-01-19  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53678  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:21:19  

Additional Information
 Earth MOID = .848827 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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