+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   46719 Plantade (1997 PJ) Classification: Main-belt Asteroid          SPK-ID: 2046719 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1227136502357264 3.4773e-08   a 2.739223408546452 1.0963e-08 au q 2.403083305272569 9.6244e-08 au i 7.250968188198926 4.9693e-06 deg node 188.1320644912529 2.3943e-05 deg peri 116.0786139408855 3.1612e-05 deg M 50.11391743208474 1.867e-05 deg tp 2458969.986979895948 (2020-Apr-30.48697990) 8.6061e-05 TDB period 1655.920979434926 4.53 9.9412e-06 2.722e-08 d yr n .2174016782629616 1.3052e-09 deg/d Q 3.075363511820336 1.2308e-08 au   Orbit Determination Parameters    # obs. used (total)      1114      data-arc span      10477 days (28.68 yr)      first obs. used      1992-05-07      last obs. used      2021-01-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52836      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 04:47:29   Additional Information  Earth MOID = 1.39725 au   Jupiter MOID = 2.18026 au   T_jup = 3.328  [ 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 15.06   n/a E2021B10   diameter diameter 5.726 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.045   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   46719 Plantade           Discovered 1997 Aug. 1 at Pises. Founder of the Royal Society of Sciences of Montpellier, François de Plantade (1670-1741) was involved in the use of the city's twelfth-century Babote Tower for astronomical purposes, specifically to observe the total solar eclipse on 1706 May 12. He died on the Pic du Midi while planning to map southern France. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050523/MPCPages.arc Last Updated: 2005-07-21 [ show close-approach data ] Alternate Designations  1997 PJ = 1993 RR7  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-25 17:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin