+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15345 (1994 PK11) Classification: Main-belt Asteroid          SPK-ID: 2015345 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2222995688867551 3.7516e-08   a 2.361501954088796 7.6486e-09 au q 1.836541087769626 8.6985e-08 au i 4.348307271431167 4.0972e-06 deg node 299.5786021773286 5.5994e-05 deg peri 116.2102579962456 5.7403e-05 deg M 34.87858976381101 1.0052e-05 deg tp 2459072.078627553768 (2020-Aug-10.57862755) 3.7055e-05 TDB period 1325.503536516613 3.63 6.4397e-06 1.763e-08 d yr n .2715948996606 1.3195e-09 deg/d Q 2.886462820407965 9.3489e-09 au   Orbit Determination Parameters    # obs. used (total)      1506      data-arc span      22738 days (62.25 yr)      first obs. used      1958-10-21      last obs. used      2021-01-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50693      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:23:28   Additional Information  Earth MOID = .852672 au   Jupiter MOID = 2.48378 au   T_jup = 3.513  [ 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 14.54   n/a E2021B10   diameter diameter 8.077 km 0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.054   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15345 (1994 PK11)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla Reference: 20000621/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1994 PK11 = 1958 UO = 1987 SZ14 = 1990 RV17 = 1992 AE3 = 1994 PY29  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-10 20:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin