+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09352343891542346 3.4164e-08   a 2.231946173214821 5.9485e-09 au q 2.023206891621651 7.703e-08 au i 2.389058722682309 3.1881e-06 deg node 328.1849882597038 9.0742e-05 deg peri 81.85754802813942 9.2574e-05 deg M 114.2879685700972 1.7388e-05 deg tp 2458813.846438794236 (2019-Nov-26.34643879) 5.8942e-05 TDB period 1217.934694050504 3.33 4.869e-06 1.333e-08 d yr n .2955823508095845 1.1817e-09 deg/d Q 2.44068545480799 6.5048e-09 au   Orbit Determination Parameters    # obs. used (total)      2078      data-arc span      18722 days (51.26 yr)      first obs. used      1969-10-16      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45891      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:05:09   Additional Information  Earth MOID = 1.03416 au   Jupiter MOID = 2.82801 au   T_jup = 3.634  [ 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 14.28   n/a E2021B10   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-Mar-01 23:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin