+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1787082467666229 5.0515e-08   a 2.385731314328173 1.1983e-08 au q 1.959381453888354 1.1891e-07 au i .9930850661221982 5.2609e-06 deg node 140.4236329616992 0.00031769 deg peri 180.8247241062659 0.00031802 deg M 172.1921837389097 1.5735e-05 deg tp 2458556.713809866012 (2019-Mar-14.21380987) 5.7524e-05 TDB period 1345.955567876715 3.69 1.014e-05 2.776e-08 d yr n .26746796743663 2.0151e-09 deg/d Q 2.812081174767992 1.4124e-08 au   Orbit Determination Parameters    # obs. used (total)      505      data-arc span      9982 days (27.33 yr)      first obs. used      1993-09-17      last obs. used      2021-01-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51558      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:37:20   Additional Information  Earth MOID = .9447 au   Jupiter MOID = 2.49487 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 ] 2021-Mar-07 05:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin