+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134P/Kowal-Vavrova Classification: Jupiter-family Comet          SPK-ID: 1000058 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456476.5 (2013-Jul-03.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .587153346460308 1.5235e-07   a 6.229249463558982 1.5833e-07 au q 2.571724795094247 9.425e-07 au i 4.348710748666897 2.039e-05 deg node 202.1234304873094 0.00010192 deg peri 18.56022478087767 0.00011855 deg M 339.5586426793965 1.3532e-05 deg tp 2456798.947668594113 (2014-May-21.44766859) 0.00020793 TDB period 5678.740353356016 15.55 0.00021651 5.928e-07 d yr n .06339434057541432 2.417e-09 deg/d Q 9.886774132023717 2.513e-07 au Additional Model Parameters  Parameter Value Uncertainty (1-sigma)  A2 [EST] 1.607468725575234E-9 4.338E-11   Orbit Determination Parameters    # obs. used (total)      1061      data-arc span      11811 days (32.34 yr)      first obs. used      1983-05-08      last obs. used      2015-09-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61547      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 11:13:18   Additional Information  Earth MOID = 1.56458 au   Jupiter MOID = .389636 au   T_jup = 2.602  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 5.3   1. 20 2 parameter fit from 250 observations, autocmod 2.8 comet total magnitude slope K1 21.   n/a 20 autocmod 2.8 comet nuclear magnitude M2 12.8   0.6 20 from 728 observations, autocmod 2.8 comet nuclear magnitude slope K2 5.   n/a 20 autocmod 2.8 comet nuclear phase coefficient PC 0.03   n/a 20 autocmod 2.8 [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   1998.8   134P/1997 X2         1983.3   134P/1983 J3   1983 III   1983t  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-05 11:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin