+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2016 QE45) Classification: Apollo [NEO, PHA]          SPK-ID: 3758270 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5260086652674183 1.3486e-07   a 1.253826811439222 1.1486e-08 au q .5943030438775739 1.6696e-07 au i 4.859241023479222 5.2518e-06 deg node 18.96697929965733 1.0833e-05 deg peri 95.72536686835251 1.4645e-05 deg M 309.9108542257435 3.1369e-05 deg tp 2459271.850312565966 (2021-Feb-26.35031257) 4.5258e-05 TDB period 512.8079572271184 1.40 7.0467e-06 1.929e-08 d yr n .7020171877726128 9.6467e-09 deg/d Q 1.91335057900087 1.7528e-08 au   Orbit Determination Parameters    # obs. used (total)      91      data-arc span      6553 days (17.94 yr)      first obs. used      2002-09-05      last obs. used      2020-08-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56731      source      ORB      producer      Otto Matic      solution date      2020-Aug-22 06:31:31   Additional Information  Earth MOID = .00647634 au   Jupiter MOID = 3.21686 au   T_jup = 4.982  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 21.7   n/a E2016T21   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-12 04:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin