+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120505 (1993 ST10) Classification: Main-belt Asteroid          SPK-ID: 2120505 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1786817648686277 5.0522e-08   a 2.385617616563853 1.2311e-08 au q 1.959351250534535 1.1895e-07 au i .9929776126139802 5.3771e-06 deg node 140.4274324795059 0.00034638 deg peri 180.7820454873091 0.00034672 deg M 118.7512141823846 1.616e-05 deg tp 2458556.548799565003 (2019-Mar-14.04879957) 5.9793e-05 TDB period 1345.859351897953 3.68 1.0418e-05 2.852e-08 d yr n .267487088819736 2.0706e-09 deg/d Q 2.811883982593172 1.4511e-08 au   Orbit Determination Parameters    # obs. used (total)      492      data-arc span      9620 days (26.34 yr)      first obs. used      1993-09-17      last obs. used      2020-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51277      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 06:20:13   Additional Information  Earth MOID = .946635 au   Jupiter MOID = 2.49514 au   T_jup = 3.513  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.5   n/a MPO449700   diameter diameter 2.665 km 0.677 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.075   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120505 (1993 ST10)          Discovered 1993-Sep-22 by Debehogne, H., Elst, E. W. at La Silla Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ show close-approach data ] Alternate Designations  1993 ST10 = 2003 FZ97  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-01 00:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin