+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   413194 (2002 WA15) Classification: Main-belt Asteroid          SPK-ID: 2413194 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .213502367453999 6.4894e-08   a 3.188873132074189 3.5804e-08 au q 2.5080411688659 2.2083e-07 au i 13.09251901292155 5.8001e-06 deg node 105.4085243773797 2.5764e-05 deg peri 309.7096902076352 2.9491e-05 deg M 30.21227932531305 1.203e-05 deg tp 2458825.943799814477 (2019-Dec-08.44379981) 6.9251e-05 TDB period 2079.956675567279 5.69 3.503e-05 9.591e-08 d yr n .1730805281806243 2.915e-09 deg/d Q 3.869705095282477 4.3449e-08 au   Orbit Determination Parameters    # obs. used (total)      309      data-arc span      6299 days (17.25 yr)      first obs. used      2002-10-31      last obs. used      2020-01-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53543      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 06:58:41   Additional Information  Earth MOID = 1.54369 au   Jupiter MOID = 1.56872 au   T_jup = 3.122  [ hide covariance matrix ] Orbital Elements at Epoch 2457800.5 (2017-Feb-16.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2123029895436824 6.4714e-08   q 2.511751222957587 2.1966e-07 au tp 2458827.078140220341 (2019-Dec-09.57814022) 6.963e-05 TDB node 105.4257302568239 2.5779e-05 deg peri 309.7487244473438 2.9575e-05 deg i 13.08687619912697 5.7976e-06 deg   Orbit Determination Parameters    # obs. used (total)      309      data-arc span      6299 days (17.25 yr)      first obs. used      2002-10-31      last obs. used      2020-01-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53543      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 06:58:41   Additional Information  Jupiter MOID = 1.56872 au   T_jup = 3.122  Orbit Covariance (6×6)   e q tp node peri i e 4.187911221209985E-15 -1.411915967623452E-14 -9.428906811369037E-13 -1.753458221066701E-14 -2.079480915208461E-13 -1.877291551739679E-14 q -1.411915967623452E-14 4.824935710257596E-14 3.073327521496544E-12 5.502507998136779E-14 6.076283254396212E-13 6.726565608033651E-14 tp -9.428906811369037E-13 3.073327521496544E-12 4.848305121714601E-9 2.571238477904134E-11 1.035185946128485E-9 -5.206714872990394E-13 node -1.753458221066701E-14 5.502507998136779E-14 2.571238477904134E-11 6.645745974155559E-10 -6.407036048212904E-10 -4.051038556401474E-11 peri -2.079480915208461E-13 6.076283254396212E-13 1.035185946128485E-9 -6.407036048212904E-10 8.74695120297697E-10 3.910059485740704E-11 i -1.877291551739679E-14 6.726565608033651E-14 -5.206714872990394E-13 -4.051038556401474E-11 3.910059485740704E-11 3.361203304537192E-11 [ 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 15.5   n/a MPO455941   413194 (2002 WA15)          Discovered 2002-Nov-28 by LONEOS at Anderson Mesa Reference: Last Updated: 2014-11-10 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-25 18:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin