+ 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 ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2223833354340231 3.618e-08   a 2.36149568925405 7.3812e-09 au q 1.836338401264667 8.3292e-08 au i 4.348109917643797 4.0866e-06 deg node 299.5772590392106 4.9028e-05 deg peri 116.19954275086 5.061e-05 deg M 88.11299158462533 9.8911e-06 deg tp 2459072.073285572787 (2020-Aug-10.57328557) 3.6587e-05 TDB period 1325.498261872383 3.63 6.2146e-06 1.701e-08 d yr n .2715959804364196 1.2734e-09 deg/d Q 2.886652977243433 9.0227e-09 au   Orbit Determination Parameters    # obs. used (total)      1688      data-arc span      22847 days (62.55 yr)      first obs. used      1958-10-21      last obs. used      2021-05-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48876      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 17:26:43   Additional Information  Earth MOID = .852787 au   Jupiter MOID = 2.48457 au   T_jup = 3.513  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.56   n/a MPCxxxxx   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 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 ] 2021-Aug-02 13:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin