+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   C/2006 P1 (McNaught) Classification: Hyperbolic Comet          SPK-ID: 1002410 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2454064.5 (2006-Nov-25.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 1.0000190685013810032444 9.955e-07   a -8953.846942964639 467.48 AU q .1707364427972129 7.1844e-07 AU i 77.83699331528216 7.3756e-05 deg node 267.4147914157445 4.4807e-05 deg peri 155.974955723039 2.3859e-05 deg M 359.9999432325748 4.4458e-06 deg tp 2454113.298853878393 (2007-Jan-12.79885388) 6.1534e-05 JED period n/a n/a n/a n/a d yr n 1.163294231335977E-6 9.1104e-08 deg/d Q n/a n/a AU   Orbit Determination Parameters    # obs. used (total)      328      data-arc span      338 days      first obs. used      2006-08-07      last obs. used      2007-07-11      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      fit RMS      .52462      data source      ORB      producer      Nick Mastrodemos      solution date      2007-Jul-18 16:15:48   Additional Information  Earth MOID = .409406 AU  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 9.5 mag 1. 25 from 92 observations, assumed slope, autocmod 2.4 comet total magnitude slope K1 10.   n/a 25 autocmod 2.4 comet nuclear magnitude M2 12.9 mag 1. 25 from 169 observations, autocmod 2.4 comet nuclear magnitude slope K2 5.   n/a 25 autocmod 2.4 comet nuclear phase coefficient PC 0.03   n/a 25 autocmod 2.4 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2013-May-23 11:34 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin