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246913 Slocum (1998 SU63)
Classification: Main-belt Asteroid          SPK-ID: 2246913
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .21992547219483 6.082e-08  
a 2.54031945062797 1.6646e-08 au
q 1.981638495922903 1.5449e-07 au
i 12.1519451201796 1.2251e-05 deg
node 281.9029986319166 3.0782e-05 deg
peri 96.46764516229506 4.9389e-05 deg
M 159.4491983365153 3.966e-05 deg
tp 2458545.485722581228
(2019-Mar-02.98572258)
0.00015972 TDB
period 1478.873160422511
4.05
1.4536e-05
3.98e-08
d
yr
n .243428584434617 2.3927e-09 deg/d
Q 3.099000405333038 2.0307e-08 au
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      7804 days (21.37 yr)  
   first obs. used      1998-09-23  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:59:00  

Additional Information
 Earth MOID = 1.0263 au 
 Jupiter MOID = 2.53411 au 
 T_jup = 3.381 
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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 16.36   n/a E2021B55  

246913 Slocum           Discovered 1998 Sept. 23 by G. C. L. Aikman at the Dominion Astrophysical Observatory, Victoria.
Joshua Slocum (1844-1909?) was the first person to circumnavigate the world alone. He sailed Spray, his rebuilt sloop, from Boston in April 1895, and returned three years later after a 74000-km journey. His book Sailing Alone Around the World is a first-hand account of his remarkable voyage.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120831/MPCPages.arcLast Updated: 2012-09-04

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Alternate Designations
 1998 SU63 = 2002 PK61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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