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12289 Carnot (1991 GP7)
Classification: Main-belt Asteroid          SPK-ID: 2012289
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09365706322125604 1.7222e-08  
a 2.231591222206276 5.3344e-09 au
q 2.022586942024103 3.8849e-08 au
i 2.389047711211498 6.5286e-07 deg
node 328.1845507409929 1.1908e-05 deg
peri 81.7910828328086 1.5917e-05 deg
M 172.2981143083114 1.1325e-05 deg
tp 2458813.728349110389
(2019-Nov-26.22834911)
3.7954e-05 TDB
period 1217.644169598087
3.33
4.366e-06
1.195e-08
d
yr
n .2956528754363656 1.0601e-09 deg/d
Q 2.440595502388449 5.8341e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2449  
   data-arc span      18872 days (51.67 yr)  
   first obs. used      1969-10-16  
   last obs. used      2021-06-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4481  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 02:56:38  

Additional Information
 Earth MOID = 1.03388 au 
 Jupiter MOID = 2.82863 au 
 T_jup = 3.635 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.29   n/a MPCxxxxx  
diameter diameter 3.617 km 0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.309   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

12289 Carnot           Discovered 1991 Apr. 8 by E. W. Elst at the European Southern Observatory.
Nicolas Léonard Sadi Carnot (1796-1832) was a French physicist known for his caloric investigations. In 1824 he published Réflexions sur la puissance motrice du fue, which contained in essence the second law of thermodynamics.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040306/MPCPages.arcLast Updated: 2004-03-08

Alternate Designations
 1991 GP7 = 1969 UK = 1992 RQ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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