+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   6183 Viscome (1987 SF7) Classification: Mars-crossing Asteroid          SPK-ID: 2006183 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2893315386721996 9.598e-08   a 2.305603623012314 1.5679e-08 AU q 1.638519779197963 2.1678e-07 AU i 19.66609116945807 9.7899e-06 deg node 274.825147218401 3.0477e-05 deg peri 116.0060241697686 3.8975e-05 deg M 89.13826887471463 2.358e-05 deg tp 2456083.880914249858 (2012-Jun-05.38091425) 8.2222e-05 JED period 1278.719817077174 3.50 1.3044e-05 3.571e-08 d yr n .281531571805048 2.8717e-09 deg/d Q 2.972687466826665 2.0215e-08 AU   Orbit Determination Parameters    # obs. used (total)      558      data-arc span      9329 days (25.54 yr)      first obs. used      1987-09-26      last obs. used      2013-04-11      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .57295      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:20:29   Additional Information  Earth MOID = .736224 AU   T_jup = 3.457  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.0 mag n/a PDS3 (MPC 28114)   6183 Viscome (1987 SF7)          Discovered 1987-Sep-26 by Shoemaker, C. S. at Palomar (675) Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1987 SF7 = 1992 AV3  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 09:58 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin