+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08360205261919332 4.2205e-08   a 2.731014005737649 1.2546e-08 au q 2.502695629126216 1.1476e-07 au i 4.705648868708369 4.272e-06 deg node 335.0639849552807 4.5157e-05 deg peri 34.7467994044023 5.1294e-05 deg M 209.6657521719413 2.6467e-05 deg tp 2459888.898231876252 (2022-Nov-05.39823188) 0.00012253 TDB period 1648.482412064169 4.51 1.1359e-05 3.11e-08 d yr n .2183826757054819 1.5048e-09 deg/d Q 2.959332382349082 1.3595e-08 au   Orbit Determination Parameters    # obs. used (total)      1927      data-arc span      15585 days (42.67 yr)      first obs. used      1977-10-11      last obs. used      2020-06-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48472      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 22:34:41   Additional Information  Earth MOID = 1.50166 au   Jupiter MOID = 2.46158 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 13.87   n/a E2021B10   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 ] 2021-Apr-19 18:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin