+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11605 Ranfagni (1995 UP6) Classification: Main-belt Asteroid          SPK-ID: 2011605 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1652698337517348 5.5353e-08   a 2.562543964640537 1.1933e-08 au q 2.139032749622884 1.4682e-07 au i 13.41670185730815 4.821e-06 deg node 229.8081174587058 2.3975e-05 deg peri 91.54627908024493 2.8931e-05 deg M 39.17822186442652 1.7152e-05 deg tp 2458837.439925977062 (2019-Dec-19.93992598) 7.0804e-05 TDB period 1498.322891002822 4.10 1.0466e-05 2.865e-08 d yr n .240268637796125 1.6783e-09 deg/d Q 2.98605517965819 1.3905e-08 au   Orbit Determination Parameters    # obs. used (total)      900      data-arc span      24048 days (65.84 yr)      first obs. used      1954-09-28      last obs. used      2020-07-31      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53738      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 00:26:04   Additional Information  Earth MOID = 1.17766 au   Jupiter MOID = 2.41545 au   T_jup = 3.377  [ 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 14.1   n/a MPO492883   diameter diameter 8.031 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.063   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11605 Ranfagni           Discovered 1995 Oct. 19 by L. Tesi and A. Boattini at San Marcello Pistoise. Piero Ranfagni (b. 1949) worked for many years as a technician at Arcetri Astrophysical Observatory. He is on the technical staff of the TIRGO Telescope and in the project office of LBT. He has also been very active in the history of astronomy and in popular astronomy. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20000523/MPCPages.arc Last Updated: 2013-03-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-28 01:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin