+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   C/1992 J1 (Spacewatch) Classification: Comet          SPK-ID: 1001257 [ Ephemeris | Orbit Diagram | Orbital Elements ] [ show orbit diagram ] Orbital Elements at Epoch 2449240.5 (1993-Sep-10.0) TDB Reference: SAO_2008 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.999961 n/a   a 77102.7179487 n/a AU q 3.007006 n/a AU i 124.3187 n/a deg node 203.3240 n/a deg peri 83.4011 n/a deg M 0.0000002 n/a deg tp 2449236.0483 (1993-Sep-05.54830000) n/a JED period n/a n/a n/a n/a d yr n 0.0000000 n/a deg/d Q 154202.4288914 n/a AU   Orbit Determination Parameters    # obs. used (total)      214      data-arc span      1007 days (2.76 yr)      first obs. used      1992-05-01      last obs. used      1995-02-02      producer      Nakano   Additional Information  T_jup = -1.212   2008 SAO Comet Catalog  [ Ephemeris | Orbit Diagram | Orbital Elements ] no physical parameters available [ Ephemeris | Orbit Diagram | Orbital Elements ] 2013-May-22 06:04 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin