Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
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 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 
[ 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 = 1.57006 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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin