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15785 de Villegas (1993 QO3)
Classification: Main-belt Asteroid          SPK-ID: 2015785
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05522038946975105 3.4722e-08  
a 3.149008717335794 1.9025e-08 au
q 2.97511922952087 1.062e-07 au
i 14.19154246746165 4.0131e-06 deg
node 156.4353783854552 1.5773e-05 deg
peri 283.7553171541299 4.0548e-05 deg
M 202.2235104934319 3.8302e-05 deg
tp 2459895.038443190225
(2022-Nov-11.53844319)
0.00021851 TDB
period 2041.076212023813
5.59
1.8497e-05
5.064e-08
d
yr
n .1763775393977302 1.5984e-09 deg/d
Q 3.322898205150717 2.0075e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1736  
   data-arc span      9788 days (26.80 yr)  
   first obs. used      1993-08-15  
   last obs. used      2020-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49019  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:53:04  

Additional Information
 Earth MOID = 2.03113 au 
 Jupiter MOID = 1.81932 au 
 T_jup = 3.158 
[ 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 13.1   n/a MPO435846  
diameter diameter 12.689 km 0.255 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.728 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.053   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15785 de Villegas           Discovered 1993 Aug. 18 by E. W. Elst at Caussols.
Esteban Manuel de Villegas (1585-1669), a Spanish poet, became famous for his lyrical work Las Eréoticas (1618), setting with its purely formal poetry a precedent for neoclassism. The naming honors also Jean-Baptiste de Villegas (1721-1806), a member of the Gezelschap van den Heiligen Bloede in Bruges.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

[ show close-approach data ]
Alternate Designations
 1993 QO3 = 1999 TA100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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