+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   P/2012 T2 (PANSTARRS) Classification: Jupiter-family Comet          SPK-ID: 1003209 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2456218.5 (2012-Oct-18.0) TDB Reference: JPL 5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1596241103276436 0.00276   a 5.737103642154856 0.0097256 AU q 4.821323577418403 0.0077693 AU i 12.56169364666271 0.0047207 deg node 73.74271974049427 0.040896 deg peri 309.5586068971883 1.5127 deg M 347.3316587451862 1.0251 deg tp 2456395.126036397524 (2013-Apr-12.62603640) 14.739 JED period 5019.23431206491 13.74 12.763 0.03494 d yr n .07172408730444309 0.00018238 deg/d Q 6.652883706891309 0.011278 AU   Orbit Determination Parameters    # obs. used (total)      38      data-arc span      34 days      first obs. used      2012-10-10      last obs. used      2012-11-13      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      6      fit RMS      .41148      data source      ORB      producer      Otto Matic      solution date      2013-Jan-06 14:51:25   Additional Information  Earth MOID = 3.84227 AU   T_jup = 2.930  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 10.2 mag 0.7 5 from 29 observations, assumed slope, autocmod 2.5b comet total magnitude slope K1 10.   n/a 5 autocmod 2.5b comet nuclear magnitude M2 13.3 mag 0.3 5 from 3 observations, autocmod 2.5b comet nuclear magnitude slope K2 5.   n/a 5 autocmod 2.5b comet nuclear phase coefficient PC 0.03   n/a 5 autocmod 2.5b Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2013.3   P/2012 T2        [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2013-May-25 11:08 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin