+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   269P/Jedicke Classification: Jupiter-family Comet          SPK-ID: 1000166 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2455129.5 (2009-Oct-25.0) TDB Reference: JPL 79 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4346533481842522 1.0033e-07   a 7.212203887361413 1.1986e-07 au q 4.077395319932295 7.4983e-07 au i 6.61166788171433 1.2274e-05 deg node 248.994162469051 0.00012019 deg peri 223.9172805770366 0.00012968 deg M 265.4497432398416 2.0808e-05 deg tp 2456987.563842327510 (2014-Nov-26.06384233) 0.00040871 TDB period 7074.57606312674 19.37 0.00017636 4.828e-07 d yr n .05088644136238057 1.2685e-09 deg/d Q 10.34701245479053 1.7196e-07 au   Orbit Determination Parameters    # obs. used (total)      900      data-arc span      8561 days (23.44 yr)      first obs. used      1993-10-12      last obs. used      2017-03-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52182      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 11:13:04   Additional Information  Earth MOID = 3.09815 au   Jupiter MOID = .293926 au   T_jup = 2.828  [ 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 6.7   0.8 79 from 522 observations, assumed slope, autocmod 2.8 comet total magnitude slope K1 12.25   n/a 79 autocmod 2.8 comet nuclear magnitude M2 11.7   0.8 79 from 154 observations, autocmod 2.8 comet nuclear magnitude slope K2 5.   n/a 79 autocmod 2.8 comet nuclear phase coefficient PC 0.03   n/a 79 autocmod 2.8 [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2014.9   269P/2012 R2         1995.5   269P/1996 A1        [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Feb-25 16:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin