+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101290 (1998 SO125) Classification: Main-belt Asteroid          SPK-ID: 2101290 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1748496671336417 5.175e-08   a 2.558834881229996 1.4006e-08 au q 2.11142345399698 1.3582e-07 au i 4.581462359353265 4.3472e-06 deg node 72.86093583531498 7.3509e-05 deg peri 292.2874297684495 7.5434e-05 deg M 111.3836616539296 1.9764e-05 deg tp 2458537.926434846254 (2019-Feb-23.42643485) 7.9703e-05 TDB period 1495.071009361753 4.09 1.2275e-05 3.361e-08 d yr n .2407912385069151 1.977e-09 deg/d Q 3.006246308463012 1.6455e-08 au   Orbit Determination Parameters    # obs. used (total)      410      data-arc span      10769 days (29.48 yr)      first obs. used      1990-11-19      last obs. used      2020-05-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58676      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:01:23   Additional Information  Earth MOID = 1.11498 au   Jupiter MOID = 2.46191 au   T_jup = 3.410  [ 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 16.1   n/a MPO453466   diameter diameter 3.339 km 0.176 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.076   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101290 (1998 SO125)          Discovered 1998-Sep-26 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2037-Aug-14 03:50 < 00:01 Juno 0.0135814259605629 0.0135774628392268 0.0135853898119865 5.54245675938735 5.54245659776616 2465284.659941297 0.508500658849521 256.206291021002 53.9424433900302 40.6460522954205 25246.6682645933 T 17 CATAB v2.0f-lin.ifort 2020-Nov-12 20:01:23 2020-Nov-12 20:01 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-15 20:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin