+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .222143030237876 4.3447e-08   a 2.361025718065908 8.8645e-09 au q 1.83654031058519 1.0301e-07 au i 4.348335171354396 4.343e-06 deg node 299.578101512502 7.3104e-05 deg peri 116.2087483325753 7.4053e-05 deg M 340.5552662883202 1.1346e-05 deg tp 2459072.072964010414 (2020-Aug-10.57296401) 4.1828e-05 TDB period 1325.102592084983 3.63 7.4627e-06 2.043e-08 d yr n .2716770777978465 1.53e-09 deg/d Q 2.885511125546626 1.0834e-08 au   Orbit Determination Parameters    # obs. used (total)      1170      data-arc span      22307 days (61.07 yr)      first obs. used      1958-10-21      last obs. used      2019-11-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55182      source      ORB      producer      Otto Matic      solution date      2019-Dec-13 23:58:02   Additional Information  Earth MOID = .8534 au   Jupiter MOID = 2.48395 au   T_jup = 3.514  [ 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 14.4   n/a MPO431676   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 ] 2020-Jul-10 20:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin