+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   7941 (1991 NE1) Classification: Main-belt Asteroid          SPK-ID: 2007941 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250288 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0463368 n/a   a 3.1773723 n/a AU q 3.0301430 n/a AU i 8.53631 n/a deg node 304.79780 n/a deg peri 78.30418 n/a deg M 241.12597 n/a deg tp 2457083.6012446 (2015-Mar-02.10124460) n/a JED period 2068.7146559 5.66 n/a n/a d yr n 0.17402110 n/a deg/d Q 3.3246016 n/a AU   Orbit Determination Parameters    # obs. used (total)      750      first obs. used      1953-??-??      last obs. used      2012-07-21      # oppositions      18      planetary ephem.      DE403      condition code      0      fit RMS      0.52      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.182  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.3 mag n/a PDS3 (MPC 30745)   7941 (1991 NE1)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar (675) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 09:58 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin