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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06615227124056584 5.3027e-08  
a 3.05955478257837 2.5412e-08 au
q 2.857158284725875 1.5757e-07 au
i .4275795989161222 4.9754e-06 deg
node 36.08650396347662 0.00064673 deg
peri 306.3595408539115 0.00064773 deg
M 152.1488678969882 3.633e-05 deg
tp 2458570.363135400172
(2019-Mar-27.86313540)
0.00019628 TDB
period 1954.725495935322
5.35
2.4353e-05
6.667e-08
d
yr
n .1841690819240799 2.2945e-09 deg/d
Q 3.261951280430865 2.7093e-08 au
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      10337 days (28.30 yr)  
   first obs. used      1992-09-30  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55499  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:52:37  

Additional Information
 Earth MOID = 1.84807 au 
 Jupiter MOID = 2.02125 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 16.37   n/a MPCxxxxx  

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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