+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2013904121464323 3.2021e-08   a 2.377792025088444 7.3308e-09 au q 1.898927509157382 7.8353e-08 au i 4.470592340430384 3.8931e-06 deg node 225.1856443174978 4.422e-05 deg peri 212.0550380424013 4.5383e-05 deg M 335.3948565934297 1.0202e-05 deg tp 2459292.034038909431 (2021-Mar-18.53403891) 3.8013e-05 TDB period 1339.242509702098 3.67 6.1934e-06 1.696e-08 d yr n .2688086716124913 1.2431e-09 deg/d Q 2.856656541019505 8.8072e-09 au   Orbit Determination Parameters    # obs. used (total)      1642      data-arc span      12216 days (33.45 yr)      first obs. used      1987-09-29      last obs. used      2021-03-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .46533      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:26:12   Additional Information  Earth MOID = .915429 au   Jupiter MOID = 2.414 au   T_jup = 3.509  [ 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 14.81   n/a E2021B10   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 ] 2021-Apr-22 04:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin