+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100626 (1997 UE2) Classification: Main-belt Asteroid          SPK-ID: 2100626 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .264236214694501 3.8478e-08   a 2.601323097122637 8.7691e-09 au q 1.913959328741576 1.0038e-07 au i 6.400698982572329 5.622e-06 deg node 33.29790918845404 2.8628e-05 deg peri 51.96807427704516 2.9997e-05 deg M 157.3007668207261 7.9543e-06 deg tp 2458530.895734628268 (2019-Feb-16.39573463) 3.3063e-05 TDB period 1532.462558231227 4.20 7.7489e-06 2.122e-08 d yr n .234916016751178 1.1879e-09 deg/d Q 3.288686865503699 1.1086e-08 au   Orbit Determination Parameters    # obs. used (total)      1143      data-arc span      8309 days (22.75 yr)      first obs. used      1997-09-23      last obs. used      2020-06-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50642      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:05:09   Additional Information  Earth MOID = .937264 au   Jupiter MOID = 1.99903 au   T_jup = 3.356  [ 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 14.82   n/a E2021B55   100626 (1997 UE2)          Discovered 1997-Oct-21 by Shimizu, Y., Urata, T. at Nachi-Katsuura 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 2067-Sep-16 13:24 < 00:01 Jupiter 1.99328225012928 1.9932819230999 1.99328257715821 1.21487840176181 0.791234721313153 2476275.058254029 0.753874569034828 253.353203720951 166.012018408006 3.14208291772872 2170969.21685036 T 21 CATAB v2.0f-lin.ifort 2020-Nov-12 20:05:11 2020-Nov-12 20:05 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-03 12:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin