+ 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 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  [ 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 14.3   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.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 ] 2020-Nov-27 07:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin