+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   214239 (2005 ET182) Classification: Main-belt Asteroid          SPK-ID: 2214239 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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 .136046120264926 6.532e-08   a 2.444080672678508 1.8316e-08 au q 2.111572979546106 1.6901e-07 au i 2.426966112467675 5.269e-06 deg node 59.88388333053214 0.00013605 deg peri 155.0569726843649 0.00013793 deg M 13.17266146022246 2.5996e-05 deg tp 2459149.432715872945 (2020-Oct-26.93271587) 0.00010046 TDB period 1395.634613495122 3.82 1.5688e-05 4.295e-08 d yr n .2579471707845102 2.8995e-09 deg/d Q 2.776588365810909 2.0807e-08 au   Orbit Determination Parameters    # obs. used (total)      292      data-arc span      6468 days (17.71 yr)      first obs. used      2002-08-13      last obs. used      2020-04-28      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .59116      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 23:45:57   Additional Information  Earth MOID = 1.10403 au   Jupiter MOID = 2.18798 au   T_jup = 3.486  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.93   n/a E2021B55   214239 (2005 ET182)          Discovered 2005-Mar-09 by LINEAR at Socorro Reference: 20090509/Numbers.arc Last Updated: 2009-05-11 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2178-Jul-02 04:31 00:01 Amphi 0.0486918765880686 0.0486386583563965 0.048745094934489 4.58325436599521 4.5832543402354 2516740.688012305 1.3316478709155 2655.65502587616 91.110278357901 -2.60772084520903 4551.36070495117 T 15 CATAB v2.0f-lin.ifort 2021-Apr-13 23:45:57 2021-Apr-13 23:45 Alternate Designations  2005 ET182 = 2002 PY80  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-22 15:45 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin