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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4240780819985683 5.805e-08  
a 3.120533077202746 1.7516e-08 au
q 1.797183395009515 1.8211e-07 au
i 22.95273448759471 5.6883e-06 deg
node 36.15824651038865 1.7398e-05 deg
peri 98.05313977480371 1.9276e-05 deg
M 285.6365243355521 5.3648e-06 deg
tp 2459812.409453351834
(2022-Aug-20.90945335)
3.1988e-05 TDB
period 2013.453538431672
5.51
1.6952e-05
4.641e-08
d
yr
n .1787972720147358 1.5054e-09 deg/d
Q 4.443882759395977 2.4944e-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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4819  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:04:26  

Additional Information
 Earth MOID = .960839 au 
 Jupiter MOID = 1.56906 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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