+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   P/2012 SB6 (Lemmon) Classification: Jupiter-family Comet          SPK-ID: 1003207 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456228.5 (2012-Oct-28.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3846171310500158 1.049e-05   a 3.910515742752455 8.6973e-05 AU q 2.406464396849084 1.4858e-05 AU i 10.98976138662869 0.00013414 deg node 9.55719065124398 0.00011402 deg peri 12.78729682965301 0.0040169 deg M 359.4934641171712 0.0016442 deg tp 2456232.474268458962 (2012-Oct-31.97426846) 0.012992 JED period 2824.551416251872 7.73 0.094231 0.000258 d yr n .1274538668082429 4.252e-06 deg/d Q 5.414567088655826 0.00012042 AU   Orbit Determination Parameters    # obs. used (total)      191      data-arc span      145 days      first obs. used      2012-09-14      last obs. used      2013-02-06      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      4      fit RMS      .6197      data source      ORB      producer      Otto Matic      solution date      2013-Mar-01 08:51:11   Additional Information  Earth MOID = 1.41025 AU   T_jup = 2.902  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 14.1 mag 0.6 11 from 102 observations, assumed slope, autocmod 2.5b comet total magnitude slope K1 10.   n/a 11 autocmod 2.5b comet nuclear magnitude M2 16.0 mag 0.5 11 from 76 observations, autocmod 2.5b comet nuclear magnitude slope K2 5.   n/a 11 autocmod 2.5b comet nuclear phase coefficient PC 0.03   n/a 11 autocmod 2.5b [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2012.8   P/2012 SB6        [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] 2013-May-20 12:01 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin