+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   246880 (1995 SR54) Classification: Main-belt Asteroid          SPK-ID: 2246880 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO227170 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.2237695 n/a   a 2.4123466 n/a AU q 1.8725370 n/a AU i 1.41191 n/a deg node 144.08254 n/a deg peri 222.24379 n/a deg M 236.73195 n/a deg tp 2456869.1040222 (2014-Jul-30.60402220) n/a JED period 1368.5415483 3.75 n/a n/a d yr n 0.26305376 n/a deg/d Q 2.9521562 n/a AU   Orbit Determination Parameters    # obs. used (total)      141      first obs. used      1992-??-??      last obs. used      2012-03-21      # oppositions      8      planetary ephem.      DE403      condition code      1      fit RMS      0.57      data source      MPC:mpu      producer      MPCLINUX   Additional Information  T_jup = 3.484  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.5 mag n/a MPC27583   246880 (1995 SR54)          Discovered 1995-Sep-17 by Beijing Schmidt CCD Asteroid Program at Xinglong (327) Reference: 20100824/Numbers.arc Last Updated: 2010-08-27 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-24 12:11 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin