+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06829733850713209 3.3233e-08   a 3.140279877215249 1.8408e-08 au q 2.925807119433944 1.0825e-07 au i 14.5490452346242 4.2022e-06 deg node 166.711428927221 1.4465e-05 deg peri 90.28536764736273 3.5813e-05 deg M 257.2930863864381 3.441e-05 deg tp 2459780.393364323864 (2022-Jul-19.89336432) 0.00019599 TDB period 2032.595507076216 5.56 1.7872e-05 4.893e-08 d yr n .1771134486653675 1.5573e-09 deg/d Q 3.354752634996555 1.9665e-08 au   Orbit Determination Parameters    # obs. used (total)      1720      data-arc span      11083 days (30.34 yr)      first obs. used      1990-09-15      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48452      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 03:26:31   Additional Information  Earth MOID = 1.95821 au   Jupiter MOID = 1.76722 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 13.28   n/a E2020-QM5   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-Mar-01 02:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin