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230691 Van Vogt (2003 UD18)
Classification: Main-belt Asteroid          SPK-ID: 2230691
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06605149461976716 5.4233e-08  
a 3.058695549988083 2.6735e-08 au
q 2.85666413732454 1.6324e-07 au
i .4275716916771026 5.5246e-06 deg
node 36.07847263006456 0.00066926 deg
peri 306.0573682723328 0.00067035 deg
M 79.54443889540134 3.7954e-05 deg
tp 2458568.772089835672
(2019-Mar-26.27208984)
0.00020602 TDB
period 1953.902118330781
5.35
2.5618e-05
7.014e-08
d
yr
n .184246691081715 2.4157e-09 deg/d
Q 3.260726962651627 2.8501e-08 au
  Orbit Determination Parameters
   # obs. used (total)      242  
   data-arc span      9950 days (27.24 yr)  
   first obs. used      1992-09-30  
   last obs. used      2019-12-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55293  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:08:08  

Additional Information
 Earth MOID = 1.8483 au 
 Jupiter MOID = 2.02309 au 
 T_jup = 3.231 
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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 16.2   n/a MPO454662  

230691 Van Vogt           Discovered 2003 Oct. 18 by B. Christophe at Saint-Sulpice.
Alfred Elton Van Vogt (1912-2000) was a Canadian-born science-fiction writer. The discoverer's favorite stories are the three novels based on General Semantics: The World of Null-A, The Pawns of Null-A and The Null-A Three, together with The Voyage of The Space Beagle, published in 1950.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100330/MPCPages.arcLast Updated: 2010-04-05

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Alternate Designations
 2003 UD18 = 2004 YQ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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