+ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06838216678984242 3.5306e-08   a 3.140464756395302 1.9867e-08 au q 2.925712971625857 1.1246e-07 au i 14.54746547187999 4.2642e-06 deg node 166.7165370325553 1.5764e-05 deg peri 90.1755674563552 3.6397e-05 deg M 221.9936036140402 3.4287e-05 deg tp 2459779.766537798131 (2022-Jul-19.26653780) 0.000196 TDB period 2032.775008650742 5.57 1.929e-05 5.281e-08 d yr n .1770978088907885 1.6805e-09 deg/d Q 3.355216541164747 2.1226e-08 au   Orbit Determination Parameters    # obs. used (total)      1623      data-arc span      11009 days (30.14 yr)      first obs. used      1990-09-15      last obs. used      2020-11-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48911      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 03:30:27   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 ] 2021-Jan-28 03:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin