+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16918 (1998 FF32) Classification: Outer Main-belt Asteroid          SPK-ID: 2016918 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08630881778088681 3.694e-08   a 3.366196567286548 1.876e-08 au q 3.075664121145966 1.2329e-07 au i 4.681822333970466 3.7039e-06 deg node 224.3917650408226 4.504e-05 deg peri 148.4865571829977 5.0146e-05 deg M 46.57611279922011 2.023e-05 deg tp 2458908.644168575112 (2020-Feb-29.14416858) 0.00012747 TDB period 2255.836586575747 6.18 1.8858e-05 5.163e-08 d yr n .1595860277035682 1.3341e-09 deg/d Q 3.65672901342713 2.038e-08 au   Orbit Determination Parameters    # obs. used (total)      2106      data-arc span      10156 days (27.81 yr)      first obs. used      1993-05-23      last obs. used      2021-03-13      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50031      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:46:49   Additional Information  Earth MOID = 2.07609 au   Jupiter MOID = 1.81708 au   T_jup = 3.143  [ 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 13.02   n/a E2021B10   diameter diameter 9.933 km 0.372 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.078   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   16918 (1998 FF32)          Discovered 1998-Mar-20 by LINEAR at Socorro Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 FF32 = 1999 JG49  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-16 12:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin