+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   27735 (1990 SZ5) Classification: Main-belt Asteroid          SPK-ID: 2027735 [ 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 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06838216987386729 3.5404e-08   a 3.140464758549544 1.9944e-08 au q 2.925712963947516 1.1266e-07 au i 14.54746581681495 4.2859e-06 deg node 166.7165376624538 1.5815e-05 deg peri 90.17556383544962 3.6506e-05 deg M 221.9936059379966 3.435e-05 deg tp 2459779.766525477507 (2022-Jul-19.26652548) 0.00019632 TDB period 2032.775010742354 5.57 1.9364e-05 5.302e-08 d yr n .1770978087085647 1.687e-09 deg/d Q 3.355216553151573 2.1308e-08 au   Orbit Determination Parameters    # obs. used (total)      1590      data-arc span      10733 days (29.39 yr)      first obs. used      1990-09-15      last obs. used      2020-02-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49146      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 01:09:15   Additional Information  Earth MOID = 1.95971 au   Jupiter MOID = 1.76763 au   T_jup = 3.157  [ 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 13.3   n/a MPO389852   diameter diameter 10.426 km 0.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.103   0.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   27735 (1990 SZ5)          Discovered 1990-Sep-22 by Elst, E. W. at La Silla Reference: 20010902/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1990 SZ5 = 1999 CH150  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-26 16:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin