+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   10548 (1992 PJ2) Classification: Mars-crossing Asteroid          SPK-ID: 2010548 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250316 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.3221837 n/a   a 2.4114492 n/a AU q 1.6345196 n/a AU i 5.60050 n/a deg node 211.64541 n/a deg peri 83.58506 n/a deg M 197.92806 n/a deg tp 2457016.2733975 (2014-Dec-24.77339750) n/a JED period 1367.7779330 3.74 n/a n/a d yr n 0.26320062 n/a deg/d Q 3.1883788 n/a AU   Orbit Determination Parameters    # obs. used (total)      613      first obs. used      1988-??-??      last obs. used      2013-01-21      # oppositions      16      planetary ephem.      DE403      condition code      0      fit RMS      0.54      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.441  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.5 mag n/a PDS3 (MPC 34449)   rotation period rot_per 4.01838 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (2007) http://www.asu.cas.cz/~ppravec/neo.htm] 10548 (1992 PJ2)          Discovered 1992-Aug-02 by Holt, H. E. at Palomar (675) Reference: 19990504/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1992 PJ2 = 1988 JZ  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 08:51 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin