+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   216P/LINEAR Classification: Jupiter-family Comet          SPK-ID: 1000331 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2453087.5 (2004-Mar-23.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4453523429269599 6.4583e-07   a 3.883402701075351 3.0216e-07 au q 2.153920209622559 2.6582e-06 au i 9.04322917982628 4.1054e-05 deg node 359.9111802313601 0.00013457 deg peri 151.6459598193536 0.00056097 deg M 146.0546019353757 0.00020556 deg tp 2451953.456237939751 (2001-Feb-12.95623794) 0.0014693 TDB period 2795.226914673523 7.65 0.00032623 8.932e-07 d yr n .1287909751119606 1.5031e-08 deg/d Q 5.612885192528144 4.3672e-07 au   Orbit Determination Parameters    # obs. used (total)      182      data-arc span      5564 days (15.23 yr)      first obs. used      2001-02-01      last obs. used      2016-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-BIG16      condition code      1      norm. resid. RMS      .70786      source      ORB      producer      Otto Matic      solution date      2016-May-24 13:46:33   Additional Information  Earth MOID = 1.16922 au   Jupiter MOID = .165894 au   T_jup = 2.868  [ 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 4.9   0.9 33 2 parameter fit from 103 observations, autocmod 2.6f comet total magnitude slope K1 38.   n/a 33 autocmod 2.6f comet nuclear magnitude M2 16.8   0.6 33 from 25 observations, autocmod 2.6f comet nuclear magnitude slope K2 5.   n/a 33 autocmod 2.6f comet nuclear phase coefficient PC 0.03   n/a 33 autocmod 2.6f [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2008.8   216P/2009 D1         2001.1   216P/2001 CV8        [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-05 10:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin