+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134397 (1997 JK11) Classification: Main-belt Asteroid          SPK-ID: 2134397 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1838731713393278 3.5932e-08   a 2.562391186278867 1.1849e-08 au q 2.091236192645829 9.014e-08 au i 6.888552501115568 3.9632e-06 deg node 211.8193678955186 3.5759e-05 deg peri 49.76530012915537 3.813e-05 deg M 246.5077006507745 1.5977e-05 deg tp 2459672.813619284412 (2022-Apr-03.31361928) 6.8297e-05 TDB period 1498.188898430742 4.10 1.0391e-05 2.845e-08 d yr n .2402901265501815 1.6667e-09 deg/d Q 3.033546179911904 1.4027e-08 au   Orbit Determination Parameters    # obs. used (total)      735      data-arc span      10071 days (27.57 yr)      first obs. used      1993-06-21      last obs. used      2021-01-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55079      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:59:53   Additional Information  Earth MOID = 1.0823 au   Jupiter MOID = 2.04532 au   T_jup = 3.400  [ 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 15.5   n/a MPO449758   diameter diameter 3.626 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.112   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   134397 (1997 JK11)          Discovered 1997-May-03 by Elst, E. W. at La Silla Reference: 20060907/Numbers.arc Last Updated: 2006-09-10 [ show close-approach data ] Alternate Designations  1997 JK11 = 2001 FS133  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-12 23:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin