+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   175178 (2005 EQ154) Classification: Main-belt Asteroid          SPK-ID: 2175178 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1512381492264362 3.2217e-08   a 2.25976180548874 9.6369e-09 au q 1.917999612334033 7.4871e-08 au i 2.229233200041704 3.9385e-06 deg node 35.457064773981 9.5487e-05 deg peri 76.3594745205228 9.665e-05 deg M 288.3701904554322 1.545e-05 deg tp 2459447.378754891700 (2021-Aug-20.87875489) 5.3942e-05 TDB period 1240.773252450341 3.40 7.937e-06 2.173e-08 d yr n .2901416510140382 1.856e-09 deg/d Q 2.601523998643447 1.1094e-08 au   Orbit Determination Parameters    # obs. used (total)      559      data-arc span      7350 days (20.12 yr)      first obs. used      2000-11-21      last obs. used      2021-01-05      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49398      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 21:04:20   Additional Information  Earth MOID = .935938 au   Jupiter MOID = 2.49681 au   T_jup = 3.604  [ 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 17.2   n/a MPO436869   175178 (2005 EQ154)          Discovered 2005-Mar-08 by Mt. Lemmon Survey at Mount Lemmon Reference: 20080122/Numbers.arc Last Updated: 2008-01-28 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-17 03:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin