+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   27756 (1991 PS14) Classification: Main-belt Asteroid          SPK-ID: 2027756 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253548 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1971526 n/a   a 2.2306446 n/a AU q 1.7908672 n/a AU i 4.19569 n/a deg node 354.53142 n/a deg peri 320.27806 n/a deg M 185.88181 n/a deg tp 2456989.0530979 (2014-Nov-27.55309790) n/a JED period 1216.8695025 3.33 n/a n/a d yr n 0.29584109 n/a deg/d Q 2.6704220 n/a AU   Orbit Determination Parameters    # obs. used (total)      443      first obs. used      1991-??-??      last obs. used      2013-02-11      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.56      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.613  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.6 mag n/a PDS3 (MPO 15155)   27756 (1991 PS14)          Discovered 1991-Aug-06 by Holt, H. E. at Palomar (675) Reference: 20010902/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 PS14 = 2000 DO18  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-20 17:52 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin