+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16144 Korsten (1999 XK144) Classification: Main-belt Asteroid          SPK-ID: 2016144 [ 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 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1070773012661212 4.1523e-08   a 3.002357822719496 1.6097e-08 au q 2.680873449627465 1.2104e-07 au i 10.09227580329661 4.0852e-06 deg node 320.498323220043 2.0412e-05 deg peri 43.17673217641006 2.6534e-05 deg M 59.66656670993054 1.6391e-05 deg tp 2458685.565201397727 (2019-Jul-21.06520140) 8.6665e-05 TDB period 1900.16844857186 5.20 1.5282e-05 4.184e-08 d yr n .1894568875041426 1.5237e-09 deg/d Q 3.323842195811527 1.7821e-08 au   Orbit Determination Parameters    # obs. used (total)      2056      data-arc span      15772 days (43.18 yr)      first obs. used      1977-09-09      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49972      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 03:01:50   Additional Information  Earth MOID = 1.6873 au   Jupiter MOID = 2.13447 au   T_jup = 3.220  [ 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 13.0   n/a MPO502293   diameter diameter 8.793 km 0.228 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.228   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   16144 Korsten           Discovered 1999 Dec. 15 by C. W. Juels at Fountain Hills. Erich E. Korsten (b. 1945) is a hydrologist and amateur astronomer from Dresden who now lives in Fountain Hills, Arizona. He helped construct the Fountain Hills Observatory, where this minor planet was discovered. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010804/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1999 XK144 = 1977 RL4 = 1990 BK6 = 1993 TC22  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 04:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin