+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   327P/Van Ness Classification: Jupiter-family Comet          SPK-ID: 1000405 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2454917.5 (2009-Mar-27.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5640019161581543 2.939e-07   a 3.557887976631412 1.0417e-07 au q 1.551232340335237 1.085e-06 au i 36.28205441755987 3.1558e-05 deg node 173.9991450792475 4.6078e-05 deg peri 185.022139809866 0.00013018 deg M .7758104119914314 3.5753e-05 deg tp 2454912.217494782356 (2009-Mar-21.71749478) 0.00024351 TDB period 2451.245625165499 6.71 0.00010765 2.947e-07 d yr n .1468641070907344 6.4499e-09 deg/d Q 5.564543612927587 1.6292e-07 au   Orbit Determination Parameters    # obs. used (total)      125      data-arc span      4946 days (13.54 yr)      first obs. used      2002-08-17      last obs. used      2016-03-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-BIG16      condition code      0      norm. resid. RMS      .90197      source      ORB      producer      Otto Matic      solution date      2016-Mar-24 15:39:39   Additional Information  Earth MOID = .545992 au   Jupiter MOID = .103703 au   T_jup = 2.563  [ 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 11.9   0.5 22 2 parameter fit from 56 observations, autocmod 2.6f comet total magnitude slope K1 23.   n/a 22 autocmod 2.6f comet nuclear magnitude M2 17.9   0.8 22 from 28 observations, autocmod 2.6f comet nuclear magnitude slope K2 5.   n/a 22 autocmod 2.6f comet nuclear phase coefficient PC 0.03   n/a 22 autocmod 2.6f [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2015.9   327P/2015 P2         2002.5   327P/2002 Q1        [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-05 11:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin