+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   165P/LINEAR Classification: Chiron-type Comet          SPK-ID: 1000294 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2452114.5 (2001-Jul-24.0) TDB Reference: JPL 48 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6215845081016984 4.104e-05   a 18.04992565738199 0.0021142 AU q 6.830371496365979 6.0202e-05 AU i 15.90526175309774 5.0756e-05 deg node .638761523552164 0.00012846 deg peri 126.2053426658549 0.0010992 deg M 5.182268390994815 0.0011081 deg tp 2451711.292173139970 (2000-Jun-15.79217314) 0.016161 JED period 28009.89966514377 76.69 4.9212 0.01347 d yr n .01285259869916611 2.2581e-06 deg/d Q 29.26947981839799 0.0034283 AU   Orbit Determination Parameters    # obs. used (total)      143      data-arc span      1209 days (3.31 yr)      first obs. used      2000-01-02      last obs. used      2003-04-25      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      3      fit RMS      .5406      data source      ORB      producer      Otto Matic      solution date      2011-Sep-14 21:11:40   Additional Information  Earth MOID = 5.87212 AU   T_jup = 3.095  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 8.0 mag n/a ICQ 2004 Handbook   comet total magnitude slope K1 8.0   n/a ICQ 2004 Handbook   Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2000.5   165P/2000 B4        [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2013-May-23 05:52 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin