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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09343431825594298 3.428e-08  
a 2.232107069341309 5.9559e-09 au
q 2.023551667043133 7.7321e-08 au
i 2.388977565419509 3.1909e-06 deg
node 328.1852243199525 9.1261e-05 deg
peri 81.91077278098946 9.3113e-05 deg
M 55.13146255001357 1.7506e-05 deg
tp 2458813.961717296124
(2019-Nov-26.46171730)
5.9301e-05 TDB
period 1218.066393803278
3.33
4.8752e-06
1.335e-08
d
yr
n .2955503918599541 1.1829e-09 deg/d
Q 2.440662471639485 6.5124e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2020  
   data-arc span      18458 days (50.54 yr)  
   first obs. used      1969-10-16  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45502  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:42:12  

Additional Information
 Earth MOID = 1.0354 au 
 Jupiter MOID = 2.82798 au 
 T_jup = 3.634 
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Orbital Elements at Epoch 2456857.5 (2014-Jul-19.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09352726592333098 3.4272e-08  
q 2.022873352712385 7.7265e-08 au
tp 2456376.160514649589
(2013-Mar-24.66051465)
6.0884e-05 TDB
node 328.3070824619248 9.1195e-05 deg
peri 81.26738753380405 9.3049e-05 deg
i 2.390262610011046 3.1923e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2020  
   data-arc span      18458 days (50.54 yr)  
   first obs. used      1969-10-16  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45502  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:42:12  

Additional Information
 Jupiter MOID = 2.82798 au 
 T_jup = 3.634 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.174593979340209E-15 -2.641724753256151E-15 -5.085575913955166E-14 7.793568534795948E-15 -2.790394707386816E-14 -8.339780834248691E-16
q -2.641724753256151E-15 5.969944772740004E-15 3.359166776210872E-14 -1.704518014978281E-14 4.036220832178247E-14 1.920511629181557E-15
tp -5.085575913955166E-14 3.359166776210872E-14 3.706838983417532E-9 2.31309557403559E-12 1.139528795346694E-9 2.625805028272386E-13
node 7.793568534795948E-15 -1.704518014978281E-14 2.31309557403559E-12 8.316470157532747E-9 -8.308012001989457E-9 2.282976867270924E-11
peri -2.790394707386816E-14 4.036220832178247E-14 1.139528795346694E-9 -8.308012001989457E-9 8.658038075550337E-9 -2.272703832650076E-11
i -8.339780834248691E-16 1.920511629181557E-15 2.625805028272386E-13 2.282976867270924E-11 -2.272703832650076E-11 1.019065457869292E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO502262  
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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