+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07275727358310818 2.1366e-08   a 2.614162376930036 1.0895e-08 au q 2.42396304968107 5.4155e-08 au i 13.66495449679074 8.7212e-07 deg node 60.1625545224376 1.425e-06 deg peri 133.5757164770874 1.0524e-05 deg M 155.470375400368 9.9516e-06 deg tp 2458533.781642346249 (2019-Feb-19.28164235) 4.0955e-05 TDB period 1543.822147063408 4.23 9.6509e-06 2.642e-08 d yr n .233187482563828 1.4577e-09 deg/d Q 2.804361704179003 1.1687e-08 au   Orbit Determination Parameters    # obs. used (total)      2253      data-arc span      26009 days (71.21 yr)      first obs. used      1949-11-19      last obs. used      2021-02-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .39239      source      ORB      producer      Otto Matic      solution date      2021-Mar-16 17:48:51   Additional Information  Earth MOID = 1.43629 au   Jupiter MOID = 2.19898 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 12.69   n/a E2021B10   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 ] 2021-Apr-12 20:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin