+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   12042 Laques (1997 FC) Classification: Main-belt Asteroid          SPK-ID: 2012042 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06395394000646613 3.3548e-08   a 2.993365494710738 1.4767e-08 au q 2.801927977444581 9.8032e-08 au i 11.86209845309413 3.844e-06 deg node 128.8094079974143 1.7835e-05 deg peri 96.61266247480968 3.5935e-05 deg M 119.2230184483564 3.2062e-05 deg tp 2458374.036660506660 (2018-Sep-12.53666051) 0.00016717 TDB period 1891.63808426217 5.18 1.3998e-05 3.832e-08 d yr n .1903112455786792 1.4083e-09 deg/d Q 3.184803011976894 1.5711e-08 au   Orbit Determination Parameters    # obs. used (total)      2173      data-arc span      9071 days (24.84 yr)      first obs. used      1996-01-15      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48214      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:47:51   Additional Information  Earth MOID = 1.82385 au   Jupiter MOID = 1.91473 au   T_jup = 3.220  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.1   n/a MPO309246   diameter diameter 10.166 km 1.596 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.108   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   12042 Laques           Discovered 1997 Mar. 17 by C. Buil at Ramonville St Agne. Pierre Laques (b. 1934) started his career at the private observatory of the Chateau D´Abadia near Hendaye, moving to the Pic du Midi, where the 1-m telescope had just been built. He is one of the codiscoverers of the satellite Saturn XII (Helène). NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20000726/MPCPages.arc Last Updated: 2013-03-29 [ show close-approach data ] Alternate Designations  1997 FC = 1996 AS3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-25 08:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin