+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   214285 (2005 GD154) Classification: Main-belt Asteroid          SPK-ID: 2214285 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1229407568025317 3.9954e-08   a 2.623988868907986 1.5913e-08 au q 2.301393691523019 1.021e-07 au i 11.3848533156906 4.906e-06 deg node 188.9565468724615 2.3437e-05 deg peri 144.5009416149039 3.2625e-05 deg M 190.4191248514231 2.4406e-05 deg tp 2460127.834027756541 (2023-Jul-02.33402776) 0.00010856 TDB period 1552.535035343366 4.25 1.4123e-05 3.867e-08 d yr n .2318788251502362 2.1093e-09 deg/d Q 2.946584046292954 1.7869e-08 au   Orbit Determination Parameters    # obs. used (total)      357      data-arc span      7207 days (19.73 yr)      first obs. used      2001-06-12      last obs. used      2021-03-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52794      source      ORB      producer      Otto Matic      solution date      2021-Jul-09 03:31:10   Additional Information  Earth MOID = 1.30191 au   Jupiter MOID = 2.50197 au   T_jup = 3.365  [ 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 16.61   n/a MPCxxxxx   214285 (2005 GD154)          Discovered 2005-Apr-14 by Spacewatch at Kitt Peak Reference: 20090509/Numbers.arc Last Updated: 2009-05-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-28 12:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin