+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   150920 (2001 TQ57) Classification: Main-belt Asteroid          SPK-ID: 2150920 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1225808933299742 3.034e-08   a 2.544571866019361 1.3285e-08 au q 2.232655973540389 7.4602e-08 au i 2.413259618112899 3.8386e-06 deg node 231.5362158007929 0.0001295 deg peri 216.6831523886038 0.00013248 deg M 207.4320539105734 3.0338e-05 deg tp 2459828.820612729170 (2022-Sep-06.32061273) 0.00012754 TDB period 1482.588095207878 4.06 1.161e-05 3.179e-08 d yr n .2428186231655416 1.9015e-09 deg/d Q 2.856487758498334 1.4913e-08 au   Orbit Determination Parameters    # obs. used (total)      666      data-arc span      8357 days (22.88 yr)      first obs. used      1997-09-29      last obs. used      2020-08-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58322      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 13:48:14   Additional Information  Earth MOID = 1.2493 au   Jupiter MOID = 2.32653 au   T_jup = 3.432  [ 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 16.15   n/a E2021B55   150920 (2001 TQ57)          Discovered 2001-Oct-13 by LINEAR at Socorro Reference: 20070303/Numbers.arc Last Updated: 2007-03-07 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-13 12:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin