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JPL Small-Body Database Browser
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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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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1328133501956951 3.1696e-08  
a 3.188397602330819 1.6684e-08 au
q 2.764935835009341 1.0543e-07 au
i 9.194185448931503 4.4137e-06 deg
node 195.0827439102928 2.3341e-05 deg
peri 245.3401535039374 2.8993e-05 deg
M 249.438100396663 1.7211e-05 deg
tp 2459239.145900509273
(2021-Jan-24.64590051)
0.00010077 TDB
period 2079.491443328991
5.69
1.6322e-05
4.469e-08
d
yr
n .1731192504565864 1.3588e-09 deg/d
Q 3.611859369652297 1.89e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2157  
   data-arc span      23931 days (65.52 yr)  
   first obs. used      1954-05-31  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43566  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:07:49  

Additional Information
 Earth MOID = 1.79593 au 
 Jupiter MOID = 1.76599 au 
 T_jup = 3.164 
[ show covariance matrix ]

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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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