+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   13528 (1991 PM16) Classification: Main-belt Asteroid          SPK-ID: 2013528 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253459 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2343861 n/a   a 2.2635123 n/a AU q 1.7329765 n/a AU i 21.83305 n/a deg node 154.78962 n/a deg peri 143.24595 n/a deg M 159.09710 n/a deg tp 2455850.7914666 (2011-Oct-16.29146660) n/a JED period 1243.8634773 3.41 n/a n/a d yr n 0.28942083 n/a deg/d Q 2.7940481 n/a AU   Orbit Determination Parameters    # obs. used (total)      472      first obs. used      1991-??-??      last obs. used      2013-02-14      # oppositions      13      planetary ephem.      DE403      condition code      0      fit RMS      0.55      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.489  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.9 mag n/a PDS3 (MPC 38323)   13528 (1991 PM16)          Discovered 1991-Aug-07 by Holt, H. E. at Palomar (675) Reference: 20000222/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 PM16 = 1991 RU = 1997 FP1  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-21 09:53 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin