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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4226302615317807 5.8352e-08  
a 3.123421914892249 1.8404e-08 au
q 1.803369294127243 1.836e-07 au
i 22.93768689980959 5.9147e-06 deg
node 36.24172234480847 1.7748e-05 deg
peri 98.00168413136943 2.0726e-05 deg
M 143.2509619623869 5.344e-06 deg
tp 2457798.195084870330
(2017-Feb-13.69508487)
2.9766e-05 TDB
period 2016.250121395475
5.52
1.7821e-05
4.879e-08
d
yr
n .1785492762925856 1.5781e-09 deg/d
Q 4.443474535657256 2.6183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      832  
   data-arc span      12098 days (33.12 yr)  
   first obs. used      1984-05-31  
   last obs. used      2017-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47978  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 17:56:32  

Additional Information
 Earth MOID = .966354 au 
 Jupiter MOID = 1.57006 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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