+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134400 (1997 LK17) Classification: Main-belt Asteroid          SPK-ID: 2134400 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1373727279311647 3.775e-08   a 2.548376588806959 1.2419e-08 au q 2.198299145006631 9.7121e-08 au i 4.78618441563197 5.4979e-06 deg node 169.4601052432315 3.9449e-05 deg peri 144.1187066650413 4.457e-05 deg M 180.400800358137 1.9497e-05 deg tp 2459741.802958044678 (2022-Jun-11.30295804) 8.106e-05 TDB period 1485.914555455954 4.07 1.0862e-05 2.974e-08 d yr n .2422750343740551 1.7711e-09 deg/d Q 2.898454032607288 1.4125e-08 au   Orbit Determination Parameters    # obs. used (total)      835      data-arc span      10657 days (29.18 yr)      first obs. used      1990-11-16      last obs. used      2020-01-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55461      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 07:28:57   Additional Information  Earth MOID = 1.18669 au   Jupiter MOID = 2.37411 au   T_jup = 3.423  [ 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 15.8   n/a MPO453828   diameter diameter 3.427 km 0.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.079   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   134400 (1997 LK17)          Discovered 1997-Jun-08 by Elst, E. W. at La Silla Reference: 20060907/Numbers.arc Last Updated: 2006-09-10 [ show close-approach data ] Alternate Designations  1997 LK17 = 2001 KY20  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-26 20:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin