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19730 Machiavelli (1999 XO36)
Classification: Main-belt Asteroid          SPK-ID: 2019730
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4233566698609321 5.8017e-08  
a 3.121756672625132 1.7717e-08 au
q 1.800140163586412 1.8212e-07 au
i 22.94045332739401 5.6868e-06 deg
node 36.19345516344714 1.74e-05 deg
peri 97.99214855702138 1.9305e-05 deg
M 214.8198514263042 5.1185e-06 deg
tp 2459812.959526994367
(2022-Aug-21.45952699)
3.202e-05 TDB
period 2014.637900508153
5.52
1.7151e-05
4.696e-08
d
yr
n .1786921609631175 1.5212e-09 deg/d
Q 4.443373181663852 2.5218e-08 au
  Orbit Determination Parameters
   # obs. used (total)      840  
   data-arc span      13287 days (36.38 yr)  
   first obs. used      1984-05-31  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48197  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:06:54  

Additional Information
 Earth MOID = .963045 au 
 Jupiter MOID = 1.57024 au 
 T_jup = 2.959 
[ 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 13.9   n/a MPO416919  
diameter diameter 9.705 km 0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19730 Machiavelli           Discovered 1999 Dec. 7 by C. W. Juels at Fountain Hills.
Niccolò Machiavelli (1469-1527) was a Florentine statesman, Italian political theorist and writer who advocated a strong central government. His famous treatise, The Prince (1513), describes the achievement and maintenance of power by a determined ruler indifferent to moral considerations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

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