+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   300P/Catalina Classification: Jupiter-family Comet [NEO]          SPK-ID: 1000567 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2454214.5 (2007-Apr-24.0) TDB Reference: JPL 12 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6937778881357841 5.5393e-08   a 2.693531346802836 5.0461e-08 au q .8248188573904301 1.471e-07 au i 5.696678027215985 1.0538e-05 deg node 95.85926941441085 6.9538e-05 deg peri 222.6664135551155 7.0211e-05 deg M 141.5458417309988 5.0042e-06 deg tp 2453579.642736611717 (2005-Jul-28.14273661) 1.5496e-05 TDB period 1614.661455432423 4.42 4.5374e-05 1.242e-07 d yr n .2229569540963547 6.2654e-09 deg/d Q 4.562243836215242 8.547e-08 au Additional Model Parameters  Parameter Value Uncertainty (1-sigma)  A2 [EST] -8.043935818392223E-11 3.091E-13   Orbit Determination Parameters    # obs. used (total)      741      # delay obs. used      0      # Doppler obs. used      1      data-arc span      4988 days (13.66 yr)      first obs. used      2005-05-06      last obs. used      2019-01-01      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .73221      source      ORB      producer      Otto Matic      solution date      2021-Apr-15 23:28:17   Additional Information  Earth MOID = .0245303 au   Jupiter MOID = .817825 au   T_jup = 2.963  [ 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 17.6   1. 12 2 parameter fit from 147 observations, autocmod 2.9c comet total magnitude slope K1 12.25   n/a 12 autocmod 2.9c [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2014.4   300P/2014 G2         2005.6   300P/2005 JQ5        [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-21 03:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin