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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4233566590988087 5.8207e-08  
a 3.121756683472156 1.8056e-08 au
q 1.800140203438007 1.8279e-07 au
i 22.94045032531197 5.915e-06 deg
node 36.19346920081989 1.7756e-05 deg
peri 97.99212875420361 2.0709e-05 deg
M 214.8198472237687 5.4781e-06 deg
tp 2459812.959554747189
(2022-Aug-21.45955475)
3.3444e-05 TDB
period 2014.637911008407
5.52
1.7479e-05
4.785e-08
d
yr
n .1786921600317774 1.5503e-09 deg/d
Q 4.443373163506306 2.57e-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 = .963045 au 
 Jupiter MOID = 1.57024 au 
 T_jup = 2.959 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456712.5 (2014-Feb-24.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4213802364548064 5.883e-08  
q 1.810068683926699 1.8537e-07 au
tp 2455776.912011084941
(2011-Aug-03.41201109)
3.6841e-05 TDB
node 36.31437721520933 1.7732e-05 deg
peri 98.04931015697046 2.0693e-05 deg
i 22.93519572440165 5.9147e-06 deg
  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
 Jupiter MOID = 1.57024 au 
 T_jup = 2.959 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.461023967017917E-15 -1.088729705325223E-14 3.802168219797867E-13 1.910431950382406E-14 1.762820734013134E-13 -8.835350079517726E-14
q -1.088729705325223E-14 3.436211213171049E-14 -1.419098662864996E-12 -4.92086196287764E-14 -6.003168537634479E-13 2.867580790326319E-13
tp 3.802168219797867E-13 -1.419098662864996E-12 1.357271888091045E-9 -2.131029007197082E-11 4.275560413225777E-10 -2.362075611535819E-11
node 1.910431950382406E-14 -4.92086196287764E-14 -2.131029007197082E-11 3.144152142387845E-10 -2.923317963158461E-10 -8.21919105456431E-12
peri 1.762820734013134E-13 -6.003168537634479E-13 4.275560413225777E-10 -2.923317963158461E-10 4.28199353106581E-10 2.176475211206782E-12
i -8.835350079517726E-14 2.867580790326319E-13 -2.362075611535819E-11 -8.21919105456431E-12 2.176475211206782E-12 3.498418990972983E-11

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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