+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   C/2006 M4 (SWAN) Classification: Hyperbolic Comet          SPK-ID: 1002407 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2454049.5 (2006-Nov-10.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 1.000185049612762 1.7109e-06   a -4231.342198675952 39.119 au q .7830082353284967 3.5988e-07 au i 111.8232624307419 2.9769e-05 deg node 148.7268421382486 2.8409e-05 deg peri 62.59437104321353 5.6879e-05 deg M .0001513681318712904 2.099e-06 deg tp 2454007.228505652355 (2006-Sep-28.72850565) 3.8294e-05 TDB period n/a n/a n/a n/a d yr n 3.580855945768649E-6 4.9658e-08 deg/d Q n/a n/a au   Orbit Determination Parameters    # obs. used (total)      1265      data-arc span      433 days (1.19 yr)      first obs. used      2006-07-12      last obs. used      2007-09-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      norm. resid. RMS      .64886      source      ORB      producer      Otto Matic      solution date      2020-Jun-02 11:43:15   Additional Information  Earth MOID = .070475 au   Jupiter MOID = 1.08892 au  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 10.9   1. 34 2 parameter fit from 230 observations, autocmod 2.8 comet total magnitude slope K1 8.5   n/a 34 autocmod 2.8 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Mar-01 17:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin