+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   13578 (1993 MK) Classification: Inner Main-belt Asteroid          SPK-ID: 2013578 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO240315 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.0919595 n/a   a 1.9441946 n/a AU q 1.7654074 n/a AU i 24.49263 n/a deg node 112.37234 n/a deg peri 237.04844 n/a deg M 61.32931 n/a deg tp 2456231.8161037 (2012-Oct-31.31610370) n/a JED period 990.1660830 2.71 n/a n/a d yr n 0.36357537 n/a deg/d Q 2.1229818 n/a AU   Orbit Determination Parameters    # obs. used (total)      662      first obs. used      1992-??-??      last obs. used      2012-10-19      # oppositions      12      planetary ephem.      DE403      condition code      0      fit RMS      0.49      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.784  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.5 mag n/a PDS3 (MPC 38337)   rotation period rot_per 3.960 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Warner, B.D. (2011) Minor Planet Bul. 38, 142-149.] [Warner, B.D. (2011) Minor Planet Bul. 38, 142-149.] [Warner, B.D. (2011) Minor Planet Bul. 38, 142-149.] 13578 (1993 MK)          Discovered 1993-Jun-17 by Holt, H. E. at Palomar (675) Reference: 20000222/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1993 MK = 1973 AF1 = 1992 AJ6  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 08:31 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin