+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   C/2007 N3 (Lulin) Classification: Comet          SPK-ID: 1002467 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2454806.5 (2008-Dec-06.0) TDB Reference: JPL 107 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .9999832595682161 2.6823e-07   a 72415.00007135335 1160.3 au q 1.212258368825713 8.649e-08 au i 178.3736106875807 7.3204e-06 deg node 338.53521460 0.00012177 deg peri 136.8622575046398 0.00012186 deg M 359.9999981974103 4.3324e-08 deg tp 2454842.139828684837 (2009-Jan-10.63982868) 1.0043e-05 TDB period 7117725416.606627 19487270.13 1.7107e+08 4.684e+05 d yr n 5.057795558677646E-8 1.2156e-09 deg/d Q 144828.7878843379 2320.6 au   Orbit Determination Parameters    # obs. used (total)      3855      data-arc span      1270 days (3.48 yr)      first obs. used      2007-07-11      last obs. used      2011-01-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-BIG16      norm. resid. RMS      .57393      source      ORB      producer      Otto Matic      solution date      2014-Jun-13 19:44:00   Additional Information  Earth MOID = .211305 au   T_jup = -1.365  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes comet total magnitude M1 9.7   1. 107 2 parameter fit from 525 observations, autocmod 2.5c comet total magnitude slope K1 7.   n/a 107 autocmod 2.5c [ show close-approach data ] Alternate Designations  Perihelion  Year (est.)  New-Style  Desig Roman  Numeral  Year/  Letter   2009.0   C/2007 N3        [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Close-Approach Data ] 2021-Jan-21 06:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin