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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 ]

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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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2199254475308829 4.7644e-08  
a 2.540319450982246 1.6535e-08 au
q 1.981638558853569 1.1982e-07 au
i 12.1519430721455 8.9343e-06 deg
node 281.9029947263969 2.5673e-05 deg
peri 96.46766844268402 3.7129e-05 deg
M 159.4491804757603 2.9017e-05 deg
tp 2458545.485795815846
(2019-Mar-02.98579582)
0.0001155 TDB
period 1478.873160731879
4.05
1.4439e-05
3.953e-08
d
yr
n .2434285843836937 2.3767e-09 deg/d
Q 3.099000343110924 2.0171e-08 au
  Orbit Determination Parameters
   # obs. used (total)      282  
   data-arc span      8245 days (22.57 yr)  
   first obs. used      1998-09-23  
   last obs. used      2021-04-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55915  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 11:10:34  

Additional Information
 Earth MOID = 1.0263 au 
 Jupiter MOID = 2.53411 au 
 T_jup = 3.381 
[ 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 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

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