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19911 Rigaux (1933 FK)
Classification: Main-belt Asteroid          SPK-ID: 2019911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2934649754493917 1.7997e-08  
a 3.044579641765127 1.5352e-08 au
q 2.151102151940806 5.7822e-08 au
i 14.79471344964307 1.3016e-06 deg
node 44.04241293230466 2.9027e-06 deg
peri 144.6422869438668 4.0117e-06 deg
M 217.1924848377466 5.7171e-06 deg
tp 2460166.229262382651
(2023-Aug-09.72926238)
3.4483e-05 TDB
period 1940.391821417236
5.31
1.4677e-05
4.018e-08
d
yr
n .1855295389449028 1.4033e-09 deg/d
Q 3.938057131589447 1.9858e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2151  
   data-arc span      32097 days (87.88 yr)  
   first obs. used      1933-03-26  
   last obs. used      2021-02-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40572  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:57  

Additional Information
 Earth MOID = 1.1681 au 
 Jupiter MOID = 1.10827 au 
 T_jup = 3.123 
[ 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 12.46   n/a E2021B10  
diameter diameter 18.341 km 0.293 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 2.3274 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Noschese, A.; Catapano, A.; Vecchione, A. (2019) Minor Planet Bull. 46, 24.]
geometric albedo albedo 0.076   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19911 Rigaux           Discovered 1933 Mar. 26 by F. Rigaux at Uccle.
Fernand Rigaux (1905-1962) was a Belgian astronomer at the Royal Observatory, Uccle, who discovered several asteroids (including the one that now bears his name). He was also a co-discoverer of comet 49P/Arend-Rigaux. Name suggested by W.A. Fröger.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-12-25Last Updated: 2016-01-04

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Alternate Designations
 1933 FK = 1949 HG = 1999 TN97 = 2000 VS56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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