+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   227450 (2005 WA62) Classification: Main-belt Asteroid          SPK-ID: 2227450 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1514259440012702 4.3845e-08   a 2.632426184914424 1.71e-08 au q 2.233808564850095 1.1438e-07 au i 5.514374724498685 4.6705e-06 deg node 53.36353240788232 5.5574e-05 deg peri 45.3501414819731 5.8623e-05 deg M 169.8799772883992 1.9872e-05 deg tp 2458464.339648109670 (2018-Dec-11.83964811) 8.2703e-05 TDB period 1560.029209508356 4.27 1.5201e-05 4.162e-08 d yr n .2307649099169459 2.2486e-09 deg/d Q 3.031043804978753 1.969e-08 au   Orbit Determination Parameters    # obs. used (total)      296      data-arc span      6761 days (18.51 yr)      first obs. used      2001-12-19      last obs. used      2020-06-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58432      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 02:26:47   Additional Information  Earth MOID = 1.25442 au   Jupiter MOID = 2.14619 au   T_jup = 3.376  [ 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 16.78   n/a E2021B55   227450 (2005 WA62)          Discovered 2005-Nov-25 by Spacewatch at Kitt Peak Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-12 17:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin