+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   12289 Carnot (1991 GP7) Classification: Main-belt Asteroid          SPK-ID: 2012289 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] 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.arc Last Updated: 2004-03-08 Alternate Designations  1991 GP7 = 1969 UK = 1992 RQ1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Aug-02 13:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin