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1918 Aiguillon (1968 UA)
Classification: Main-belt Asteroid          SPK-ID: 2001918
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132813370819095 3.402e-08  
a 3.188397608911626 1.7156e-08 au
q 2.76493577496053 1.1138e-07 au
i 9.194184348492319 4.5204e-06 deg
node 195.0827336752772 2.4753e-05 deg
peri 245.340157889768 3.0291e-05 deg
M 249.4381030965298 1.7286e-05 deg
tp 2459239.145886891091
(2021-Jan-24.64588689)
0.0001011 TDB
period 2079.491449767052
5.69
1.6784e-05
4.595e-08
d
yr
n .1731192499206129 1.3973e-09 deg/d
Q 3.611859442862722 1.9435e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1992  
   data-arc span      23823 days (65.22 yr)  
   first obs. used      1954-05-31  
   last obs. used      2019-08-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44854  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:21:12  

Additional Information
 Earth MOID = 1.79593 au 
 Jupiter MOID = 1.76599 au 
 T_jup = 3.164 
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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 11.7   n/a MPO332834  
diameter diameter 19.536 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.062   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1918 Aiguillon           Discovered 1968 Oct. 19 by G. Soulie at Bordeaux.
Named for the discoverer’s birthplace, a small town on the Garonne river.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5038Last Updated: 2006-03-21

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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