+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   7380 (1981 RF) Classification: Main-belt Asteroid          SPK-ID: 2007380 [ 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 .1902073895274298 8.7834e-08   a 2.430354006494122 1.7889e-08 AU q 1.968082715291345 2.1051e-07 AU i 3.418090361380242 7.1989e-06 deg node 117.862226646965 0.00012295 deg peri 238.9868113855151 0.0001247 deg M 118.4833297310192 2.6311e-05 deg tp 2455945.032405470175 (2012-Jan-18.53240547) 9.7929e-05 JED period 1383.893703890478 3.79 1.528e-05 4.183e-08 d yr n .2601355862722319 2.8722e-09 deg/d Q 2.892625297696899 2.1292e-08 AU   Orbit Determination Parameters    # obs. used (total)      879      data-arc span      11547 days (31.61 yr)      first obs. used      1981-08-30      last obs. used      2013-04-11      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .5557      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 13:26:03   Additional Information  Earth MOID = .965866 AU   T_jup = 3.481  [ 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 13.8 mag n/a PDS3 (MPC 28821)   7380 (1981 RF)          Discovered 1981-Sep-03 by Thomas, N. G. at Anderson Mesa (688) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-25 01:18 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin