+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   356P/WISE Classification: Jupiter-family Comet          SPK-ID: 1003063 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2457806.5 (2017-Feb-22.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3539845441246334 1.6642e-06   a 4.163090256968354 1.6216e-06 au q 2.689420650205708 7.9009e-06 au i 9.630250736301107 5.0331e-05 deg node 160.8098525208839 0.00018015 deg peri 226.2043286533359 0.0015608 deg M 325.3940890343899 0.00068169 deg tp 2458104.742789098705 (2017-Dec-17.24278910) 0.0057284 TDB period 3102.574129091156 8.49 0.0018128 4.963e-06 d yr n .1160326828695164 6.7797e-08 deg/d Q 5.636759863730999 2.1957e-06 au   Orbit Determination Parameters    # obs. used (total)      184      data-arc span      3014 days (8.25 yr)      first obs. used      2009-11-09      last obs. used      2018-02-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      2      norm. resid. RMS      .79016      source      ORB      producer      Otto Matic      solution date      2018-Feb-28 08:15:33   Additional Information  Earth MOID = 1.70343 au   Jupiter MOID = .218042 au   T_jup = 2.899  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 6.5   0.7 12 from 139 observations, assumed slope, autocmod 2.6m comet total magnitude slope K1 25.   n/a 12 autocmod 2.6m comet nuclear magnitude M2 15.3   0.6 12 from 42 observations, autocmod 2.6m comet nuclear magnitude slope K2 5.   n/a 12 autocmod 2.6m comet nuclear phase coefficient PC 0.03   n/a 12 autocmod 2.6m [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2018.0   356P/2017 O2         2009.5   356P/2010 D1        [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-07 09:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin