+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   5504 Lanzerotti (1985 FC2) Classification: Main-belt Asteroid          SPK-ID: 2005504 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07231776308789245 4.4895e-08   a 2.615632380455881 1.1909e-08 au q 2.426475697641053 1.156e-07 au i 13.66511828326139 5.0815e-06 deg node 60.18747350308747 1.641e-05 deg peri 133.8689588494789 3.7173e-05 deg M 108.5379897837254 3.1092e-05 deg tp 2458534.653585072876 (2019-Feb-20.15358507) 0.00013371 TDB period 1545.124520068373 4.23 1.0553e-05 2.889e-08 d yr n .23299093071416 1.5912e-09 deg/d Q 2.80478906327071 1.277e-08 au   Orbit Determination Parameters    # obs. used (total)      1927      data-arc span      25778 days (70.58 yr)      first obs. used      1949-11-19      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40423      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 16:20:53   Additional Information  Earth MOID = 1.43941 au   Jupiter MOID = 2.19938 au   T_jup = 3.364  [ 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 12.6   n/a MPO384804   diameter diameter 7.167 km 0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   geometric albedo albedo 0.261   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   5504 Lanzerotti (1985 FC2)          Discovered 1985-Mar-22 by Bowell, E. at Flagstaff Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1985 FC2 = 1991 RJ25  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Jul-07 07:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin