+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   227215 (2005 QK178) Classification: Main-belt Asteroid          SPK-ID: 2227215 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .150869520047738 5.6209e-08   a 2.385123488071066 1.1899e-08 au q 2.025281052171198 1.3208e-07 au i 6.949166974375712 6.0845e-06 deg node 39.94476045459444 3.0207e-05 deg peri 338.0303360046722 3.4464e-05 deg M 35.02019757071828 1.4722e-05 deg tp 2459069.617729057196 (2020-Aug-08.11772906) 5.5182e-05 TDB period 1345.441225574535 3.68 1.0068e-05 2.756e-08 d yr n .2675702164888485 2.0023e-09 deg/d Q 2.744965923970934 1.3694e-08 au   Orbit Determination Parameters    # obs. used (total)      309      data-arc span      7624 days (20.87 yr)      first obs. used      2000-03-03      last obs. used      2021-01-16      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57956      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 00:38:53   Additional Information  Earth MOID = 1.02822 au   Jupiter MOID = 2.71624 au   T_jup = 3.510  [ 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 17.0   n/a MPO433487   227215 (2005 QK178)          Discovered 2005-Aug-26 by NEAT at Palomar Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-20 21:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin