+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16387 (1981 EB37) Classification: Main-belt Asteroid          SPK-ID: 2016387 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .02865653739829532 5.2952e-08   a 2.688446527610959 1.4482e-08 au q 2.611404959149159 1.3713e-07 au i 8.221082211942221 4.6288e-06 deg node 357.9632039370034 2.7397e-05 deg peri 304.7549650260418 0.00011499 deg M 196.0141608055938 0.00011716 deg tp 2459733.922749925920 (2022-Jun-03.42274993) 0.00052631 TDB period 1610.091403443193 4.41 1.301e-05 3.562e-08 d yr n .2235897907597899 1.8067e-09 deg/d Q 2.76548809607276 1.4898e-08 au   Orbit Determination Parameters    # obs. used (total)      1383      data-arc span      14532 days (39.79 yr)      first obs. used      1981-02-02      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49536      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 20:29:27   Additional Information  Earth MOID = 1.60699 au   Jupiter MOID = 2.30348 au   T_jup = 3.358  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.2   n/a MPO365449   16387 (1981 EB37)          Discovered 1981-Mar-11 by Bus, S. J. at Siding Spring Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-22 04:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin