+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   30P/Reinmuth 1 Classification: Jupiter-family Comet          SPK-ID: 1000070 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] alternate orbits: [epoch=2011-07-18.0] K103/1 (default) [epoch=1995-08-31.0] SAO/1995 [epoch=1988-04-29.0] SAO/1988 [epoch=1980-11-17.0] SAO/1980 [epoch=1973-03-19.0] SAO/1973 [epoch=1965-08-28.0] SAO/1965 [epoch=1958-03-18.0] SAO/1958 [epoch=1950-07-18.0] SAO/1950 [epoch=1935-04-28.0] SAO/1935 [epoch=1928-02-04.0] SAO/1928 Orbital Elements at Epoch 2455760.5 (2011-Jul-18.0) TDB Reference: JPL K103/1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5011951227503952 2.1367e-07   a 3.775407630338671 2.499e-07 AU q 1.883191739618302 8.7636e-07 AU i 8.122650127481364 1.3045e-05 deg node 119.7411580634997 6.9472e-05 deg peri 13.17407440221874 9.9004e-05 deg M 61.06371446584335 2.5329e-05 deg tp 2455306.009386190078 (2010-Apr-19.50938619) 0.00018751 JED period 2679.441013420379 7.34 0.00026604 7.284e-07 d yr n .134356381871027 1.334e-08 deg/d Q 5.66762352105904 3.7516e-07 AU Additional Model Parameters  Parameter Value Uncertainty (1-sigma)  A1 [EST] 5.284437820773033E-9 2.139E-10 A2 [EST] -4.164281724095406E-10 3.962E-11 A3 [EST] 2.697319825894254E-10 1.17E-10 DT [EST] 28.20513432573296 4.046   Orbit Determination Parameters    # obs. used (total)      2353      data-arc span      6141 days (16.81 yr)      first obs. used      1994-09-01      last obs. used      2011-06-25      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .81375      data source      ORB      producer      Alan B. Chamberlin      solution date      2011-Jul-22 11:28:57   Additional Information  Earth MOID = .900351 AU   T_jup = 2.838  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 11.7 mag 1. K103/1 2 parameter fit from 623 observations, autocmod 2.4d comet total magnitude slope K1 12.   n/a K103/1 autocmod 2.4d comet nuclear magnitude M2 14.6 mag 0.7 K103/1 from 1269 observations, autocmod 2.4d comet nuclear magnitude slope K2 5.   n/a K103/1 autocmod 2.4d comet nuclear phase coefficient PC 0.03   n/a K103/1 autocmod 2.4d diameter diameter 7.8 km n/a Scotti,J (1994) BAAS 26:1375   30P/Reinmuth 1          Discovered 1928-Feb-22 by Reinmuth, Karl at Heidelberg Observatory, Germany (024) 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   1995.6           1994p   1988.3       1988 VI   1987r   1981.0       1980 VIII   1979j   1973.6       1973 IV   1972i   1966.3       1965 V   1965a   1958.9       1958 II   1957e   1951.6       1950 IV   1949f   1936.9   30P/1934 V1   1935 II   1934b   1929.6   30P/1928 D1   1928 I   1928a  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-19 19:22 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin