+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11180 (1998 FU117) Classification: Main-belt Asteroid          SPK-ID: 2011180 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08339632802819805 4.2267e-08   a 2.731517906227159 1.2702e-08 au q 2.503719342904542 1.1504e-07 au i 4.705453734946174 4.2972e-06 deg node 335.0622208339149 4.5866e-05 deg peri 34.76340306709846 5.2074e-05 deg M 165.975063259839 2.6669e-05 deg tp 2458240.270274676758 (2018-May-01.77027468) 0.00012098 TDB period 1648.938676335423 4.51 1.1502e-05 3.149e-08 d yr n .2183222488298101 1.5229e-09 deg/d Q 2.959316469549775 1.3761e-08 au   Orbit Determination Parameters    # obs. used (total)      1876      data-arc span      15533 days (42.53 yr)      first obs. used      1977-10-11      last obs. used      2020-04-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48595      source      ORB      producer      Otto Matic      solution date      2020-May-20 03:30:05   Additional Information  Earth MOID = 1.50424 au   Jupiter MOID = 2.46148 au   T_jup = 3.344  [ 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 13.9   n/a MPO502255   diameter diameter 9.670 km 0.135 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.064   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   11180 (1998 FU117)          Discovered 1998-Mar-31 by LINEAR at Socorro Reference: 19990728/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 FU117 = 1986 RV15 = 2212 T-3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-23 21:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin