+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   P/2012 B1 (PANSTARRS) Classification: Jupiter-family Comet          SPK-ID: 1003168 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456224.5 (2012-Oct-24.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4102859535913683 3.6147e-06   a 6.486579306567452 1.7758e-06 AU q 3.825226930226388 2.4429e-05 AU i 7.628010325717919 1.4326e-05 deg node 36.19223417815267 0.00013539 deg peri 162.1873813713208 0.0012196 deg M 343.7618067390599 0.00037706 deg tp 2456496.680639660348 (2013-Jul-23.18063966) 0.0062152 JED period 6034.232300549205 16.52 0.002478 6.784e-06 d yr n .0596596189986313 2.4499e-08 deg/d Q 9.147931682908515 2.5044e-06 AU   Orbit Determination Parameters    # obs. used (total)      861      data-arc span      5817 days (15.93 yr)      first obs. used      1997-06-01      last obs. used      2013-05-05      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      1      fit RMS      .52918      data source      ORB      producer      Otto Matic      solution date      2013-May-07 16:13:26   Additional Information  Earth MOID = 2.82529 AU   T_jup = 2.821  [ 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 5.8 mag 0.7 33 from 189 observations, assumed slope, autocmod 2.5c comet total magnitude slope K1 14.   n/a 33 autocmod 2.5c comet nuclear magnitude M2 11.4 mag 0.7 33 from 631 observations, autocmod 2.5c comet nuclear magnitude slope K2 5.   n/a 33 autocmod 2.5c comet nuclear phase coefficient PC 0.03   n/a 33 autocmod 2.5c [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2013.6   P/2012 B1        [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] 2013-May-23 22:29 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin