+ 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 2457814.5 (2017-Mar-02.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3539852674872025 1.5314e-06   a 4.163130100181197 1.5552e-06 au q 2.689443378084532 7.3031e-06 au i 9.630260344618494 4.9312e-05 deg node 160.8099339335319 0.00017916 deg peri 226.2031743285461 0.0015662 deg M 326.3232195905862 0.00068519 deg tp 2458104.739465618672 (2017-Dec-17.23946562) 0.0057657 TDB period 3102.618669375966 8.49 0.0017385 4.76e-06 d yr n .1160310171383089 6.5016e-08 deg/d Q 5.636816822277862 2.1057e-06 au   Orbit Determination Parameters    # obs. used (total)      186      data-arc span      3014 days (8.25 yr)      first obs. used      2009-11-09      last obs. used      2018-02-09      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      2      norm. resid. RMS      .76324      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 23:28:34   Additional Information  Earth MOID = 1.70277 au   Jupiter MOID = .218009 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 7.4   0.7 14 from 141 observations, assumed slope, autocmod 2.9c comet total magnitude slope K1 23.   n/a 14 autocmod 2.9c comet nuclear magnitude M2 15.3   0.6 14 from 42 observations, autocmod 2.9c comet nuclear magnitude slope K2 5.   n/a 14 autocmod 2.9c comet nuclear phase coefficient PC 0.03   n/a 14 autocmod 2.9c [ 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-Apr-21 03:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin