+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   33P/Daniel Classification: Jupiter-family Comet          SPK-ID: 1000018 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] alternate orbits: [epoch=2010-Oct-12.0] K163/6 (default) [epoch=2009-May-01.0] K084/7 [epoch=1992-Sep-15.0] SAO/1992 [epoch=1985-Aug-03.0] SAO/1985 [epoch=1978-Jun-21.0] SAO/1978 [epoch=1964-May-05.0] SAO/1964 [epoch=1950-Aug-27.0] SAO/1950 [epoch=1943-Nov-12.0] SAO/1943 [epoch=1937-Jan-27.0] SAO/1937 [epoch=1909-Nov-20.0] SAO/1909 Orbital Elements at Epoch 2455481.5 (2010-Oct-12.0) TDB Reference: JPL K163/6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .4623598055003007 1.2879e-06   a 4.030063617285276 3.2149e-07 au q 2.166724187043418 5.2687e-06 au i 22.3861446076708 1.434e-05 deg node 66.54083550078751 0.00011631 deg peri 18.905300691195 0.00036208 deg M 99.11544247265145 9.7676e-05 deg tp 2454667.910934820663 (2008-Jul-20.41093482) 0.00081672 TDB period 2955.059838888152 8.09 0.00035361 9.681e-07 d yr n .1218249442066969 1.4578e-08 deg/d Q 5.893403047527135 4.7014e-07 au Additional Model Parameters  Parameter Value Uncertainty (1-sigma)  A1 [EST] 3.115296971165556E-9 1.305E-9 A2 [EST] 4.706573638645926E-10 1.398E-11   Orbit Determination Parameters    # obs. used (total)      403      data-arc span      6347 days (17.38 yr)      first obs. used      1999-11-13      last obs. used      2017-03-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      1      norm. resid. RMS      .8842      source      ORB      producer      Davide Farnocchia      solution date      2017-May-07 17:43:16   Additional Information  Earth MOID = 1.19214 au   Jupiter MOID = .152279 au   T_jup = 2.734  [ 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 11.9   1. K163/6 from 159 observations, assumed slope, autocmod 2.6i comet total magnitude slope K1 13.   n/a K163/6 autocmod 2.6i diameter diameter 2.6 km n/a Scotti,J (1994) BAAS 26:1375   33P/Daniel          Discovered 1909-Dec-07 by Daniel, Zaccheus at Princeton University, New Jersey Reference: comet.dis Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   1992.4       1992 XXIII   1992o   1984.3       1985 XI   1985j   1976.2       1978 XII   1979b   1960.0       1964 II   1964a   1951.9       1950 V   1950d   1943.8       1943 IV     1935.7   33P/1937 B1   1937 I   1937a   1911.5   33P/1909 X1   1909 IV   1909e  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-25 17:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin