+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9596 (1991 RC22) Classification: Main-belt Asteroid          SPK-ID: 2009596 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO253431 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1870319 n/a   a 2.2517660 n/a AU q 1.8306139 n/a AU i 3.94870 n/a deg node 43.31459 n/a deg peri 251.75982 n/a deg M 178.69524 n/a deg tp 2455787.8762759 (2011-Aug-14.37627590) n/a JED period 1234.1937069 3.38 n/a n/a d yr n 0.29168841 n/a deg/d Q 2.6729181 n/a AU   Orbit Determination Parameters    # obs. used (total)      786      first obs. used      1971-??-??      last obs. used      2013-01-27      # oppositions      16      planetary ephem.      DE403      condition code      0      fit RMS      0.53      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.600  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.3 mag n/a PDS3 (MPC 32888)   9596 (1991 RC22)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar (675) Reference: 19981110/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1991 RC22 = 1971 VC = 1977 JM = 1978 WK6 = 1981 TS3  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-20 00:41 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin