+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   344P/Read Classification: Jupiter-family Comet          SPK-ID: 1001667 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2455525.5 (2010-Nov-25.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4219537770967076 1.1444e-06   a 4.887307791955205 2.3902e-07 au q 2.825089809305536 5.4593e-06 au i 3.483122638216672 2.6716e-05 deg node 273.2921318668698 0.00045444 deg peri 140.3702815961582 0.00047599 deg M 162.3148827884182 5.5398e-05 deg tp 2453746.160561785909 (2006-Jan-10.66056179) 0.00053565 TDB period 3946.416907388972 10.80 0.0002895 7.926e-07 d yr n .09122198907215386 6.6919e-09 deg/d Q 6.949525774604875 3.3987e-07 au   Orbit Determination Parameters    # obs. used (total)      532      data-arc span      23841 days (65.27 yr)      first obs. used      1951-12-01      last obs. used      2017-03-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62152      source      ORB      producer      Otto Matic      solution date      2018-Feb-28 08:15:31   Additional Information  Earth MOID = 1.83723 au   Jupiter MOID = .12171 au   T_jup = 2.819  [ 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 12.5   0.6 28 from 259 observations, assumed slope, autocmod 2.6m comet total magnitude slope K1 10.   n/a 28 autocmod 2.6m comet nuclear magnitude M2 14.9   0.5 28 from 210 observations, autocmod 2.6m comet nuclear magnitude slope K2 5.   n/a 28 autocmod 2.6m comet nuclear phase coefficient PC 0.03   n/a 28 autocmod 2.6m [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2016.8   344P/2016 Q1         2006.0   344P/2005 S3        [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Mar-05 11:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin