+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100803 (1998 FP98) Classification: Main-belt Asteroid          SPK-ID: 2100803 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2429391326933604 4.7166e-08   a 2.754742716387311 1.8326e-08 au q 2.085507910074826 1.3543e-07 au i 6.687371835077373 4.5907e-06 deg node 253.4628446621688 4.0039e-05 deg peri 289.5718769941467 4.131e-05 deg M 347.0888850491808 1.3324e-05 deg tp 2459260.393713255307 (2021-Feb-14.89371326) 6.2215e-05 TDB period 1670.013539035416 4.57 1.6664e-05 4.562e-08 d yr n .2155671146282638 2.1511e-09 deg/d Q 3.423977522699797 2.2778e-08 au   Orbit Determination Parameters    # obs. used (total)      684      data-arc span      8361 days (22.89 yr)      first obs. used      1998-02-25      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56436      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:26:14   Additional Information  Earth MOID = 1.09852 au   Jupiter MOID = 1.62351 au   T_jup = 3.291  [ 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 15.2   n/a MPO273082   diameter diameter 4.306 km 1.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   geometric albedo albedo 0.079   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)   100803 (1998 FP98)          Discovered 1998-Mar-31 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1998 FP98 = 2001 XY154  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-02 21:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin