+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   59P/Kearns-Kwee Classification: Jupiter-family Comet          SPK-ID: 1000050 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] alternate orbits: [epoch=2013-Nov-02.0] K182/5 (default) [epoch=2010-Apr-14.0] K084/11 [epoch=1990-Nov-05.0] SAO/1990 [epoch=1981-Nov-12.0] SAO/1981 [epoch=1972-Nov-19.0] SAO/1972 [epoch=1963-Nov-27.0] SAO/1963 Orbital Elements at Epoch 2456598.5 (2013-Nov-02.0) TDB Reference: JPL K182/5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4763780377856204 2.3387e-07   a 4.49104084808245 1.4059e-07 au q 2.351607621257864 9.7905e-07 au i 9.342933810173106 8.7289e-06 deg node 312.8604406817258 5.8116e-05 deg peri 127.7450117838551 0.00011519 deg M 175.8811479391742 3.3415e-05 deg tp 2454900.116642990156 (2009-Mar-09.61664299) 0.00029695 TDB period 3476.313497424938 9.52 0.00016324 4.469e-07 d yr n .103557978952896 4.8627e-09 deg/d Q 6.630474074907036 2.0756e-07 au   Orbit Determination Parameters    # obs. used (total)      1269      data-arc span      3925 days (10.75 yr)      first obs. used      2008-07-09      last obs. used      2019-04-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .68026      source      ORB      producer      Davide Farnocchia      solution date      2021-Mar-19 11:19:13   Additional Information  Earth MOID = 1.38058 au   Jupiter MOID = .00636124 au   T_jup = 2.771  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 10.5   0.8 K182/5 2 parameter fit from 446 observations, autocmod 2.9b comet total magnitude slope K1 15.   n/a K182/5 autocmod 2.9b comet nuclear magnitude M2 14.7   0.6 K182/5 from 856 observations, autocmod 2.9b comet nuclear magnitude slope K2 5.   n/a K182/5 autocmod 2.9b comet nuclear phase coefficient PC 0.03   n/a K182/5 autocmod 2.9b diameter diameter 1.58 km n/a DASTCOM value unverified 59P/Kearns-Kwee          Discovered 1963-Aug-17 by Kearns, E. and Kwee, K. K. at Palomar Mountain Observatory, California discovered on plate/photo taken on discovery date Reference: comet.dis Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   1990.2       1990 XXV   1989u   1980.6       1981 XX   1981h   1971.1   59P/1971 O1   1972 XI   1971c   1961.6   59P/1963 Q1   1963 VIII   1963d  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 12:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin