+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   C/2019 K5 (Young) Classification: Comet          SPK-ID: 1003629 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] [ show orbit diagram ] Orbital Elements at Epoch 2458739.5 (2019-Sep-13.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .9865348783605891 7.9094e-06   a 151.1346937410713 0.088819 au q 2.035047035158644 1.3454e-06 au i 15.31538130379544 2.622e-05 deg node 177.1884106440093 6.467e-05 deg peri 174.916615586373 0.00013676 deg M .04363008898195084 3.8349e-05 deg tp 2458657.251444324261 (2019-Jun-22.75144432) 0.00025469 TDB period 678648.1699708444 1858.04 598.24 1.638 d yr n .0005304663239797229 4.6762e-07 deg/d Q 300.234340446984 0.17644 au   Orbit Determination Parameters    # obs. used (total)      734      data-arc span      643 days (1.76 yr)      first obs. used      2018-06-17      last obs. used      2020-03-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      norm. resid. RMS      .45277      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 23:33:56   Additional Information  Earth MOID = 1.02987 au   Jupiter MOID = 1.27538 au   T_jup = 1.735  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 12.1   0.6 14 2 parameter fit from 586 observations, autocmod 2.9c comet total magnitude slope K1 9.5   n/a 14 autocmod 2.9c comet nuclear magnitude M2 14.6   0.5 14 from 83 observations, autocmod 2.9c comet nuclear magnitude slope K2 5.   n/a 14 autocmod 2.9c comet nuclear phase coefficient PC 0.03   n/a 14 autocmod 2.9c Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2019.5   C/2019 K5        [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters ] 2021-Apr-22 18:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin