+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14355 (1987 SL5) Classification: Main-belt Asteroid          SPK-ID: 2014355 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2013118317962265 3.2194e-08   a 2.37795791518992 7.5802e-09 au q 1.899246851348702 7.8628e-08 au i 4.470447706944383 3.9068e-06 deg node 225.1882398134485 4.8035e-05 deg peri 212.0145661565454 4.9076e-05 deg M 281.6600846983297 1.0584e-05 deg tp 2459291.964234472080 (2021-Mar-18.46423447) 3.9634e-05 TDB period 1339.382663434047 3.67 6.4043e-06 1.753e-08 d yr n .2687805433265762 1.2852e-09 deg/d Q 2.856668979031139 9.1061e-09 au   Orbit Determination Parameters    # obs. used (total)      1451      data-arc span      12079 days (33.07 yr)      first obs. used      1987-09-29      last obs. used      2020-10-24      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47297      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:40:26   Additional Information  Earth MOID = .916187 au   Jupiter MOID = 2.41378 au   T_jup = 3.508  [ 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 14.7   n/a MPO435836   diameter diameter 6.943 km 0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.046   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14355 (1987 SL5)          Discovered 1987-Sep-30 by Jensen, P. at Brorfelde Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1987 SL5 = 1989 GK3 = 1998 SH108  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-27 19:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin