+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   C/2012 K1 (PANSTARRS) Classification: Hyperbolic Comet          SPK-ID: 1003190 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2456238.5 (2012-Nov-07.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 1.00037662212593 8.8193e-06   a -2801.645526796422 65.613 AU q 1.055161694404448 7.0181e-06 AU i 142.4206434827117 0.0001033 deg node 317.6923995276179 0.00038972 deg peri 203.041490187698 0.0004124 deg M 359.9956227471941 0.00015372 deg tp 2456897.093340620523 (2014-Aug-27.59334062) 0.0077872 JED period n/a n/a n/a n/a d yr n 6.646366636142107E-6 2.3348e-07 deg/d Q n/a n/a AU   Orbit Determination Parameters    # obs. used (total)      742      data-arc span      358 days      first obs. used      2012-05-14      last obs. used      2013-05-07      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      fit RMS      .54281      data source      ORB      producer      Otto Matic      solution date      2013-May-07 16:13:12   Additional Information  Earth MOID = .107068 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 4.6 mag 0.5 32 from 139 observations, assumed slope, autocmod 2.5c comet total magnitude slope K1 10.   n/a 32 autocmod 2.5c comet nuclear magnitude M2 8.9 mag 0.6 32 from 548 observations, autocmod 2.5c comet nuclear magnitude slope K2 5.   n/a 32 autocmod 2.5c comet nuclear phase coefficient PC 0.03   n/a 32 autocmod 2.5c [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2013-May-22 05:29 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin