+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14134 Penkala (1998 RP42) Classification: Main-belt Asteroid          SPK-ID: 2014134 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1218381346165041 3.7506e-08   a 2.550669940574702 1.0677e-08 au q 2.239901072992691 9.582e-08 au i 4.482396508682164 4.4804e-06 deg node 265.1872098959792 5.7147e-05 deg peri 166.1508642962758 6.085e-05 deg M 103.0659198698539 2.1234e-05 deg tp 2458774.516864467780 (2019-Oct-18.01686447) 8.7081e-05 TDB period 1487.920827614467 4.07 9.3427e-06 2.558e-08 d yr n .2419483572772992 1.5192e-09 deg/d Q 2.861438808156713 1.1978e-08 au   Orbit Determination Parameters    # obs. used (total)      1494      data-arc span      23887 days (65.40 yr)      first obs. used      1954-12-22      last obs. used      2020-05-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51576      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:41:54   Additional Information  Earth MOID = 1.25432 au   Jupiter MOID = 2.38729 au   T_jup = 3.426  [ 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 14.48   n/a E2021B10   diameter diameter 3.299 km 0.852 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.339   0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14134 Penkala           Discovered 1998 Sept. 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Brad Penkala mentored a finalist in the 2002 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. He teaches at the Goleta Valley Junior High School, Goleta, California. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20021021/MPCPages.arc Last Updated: 2003-10-02 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2019-Feb-14 01:10 < 00:01 Thisb 0.0323544955265672 0.0323532044525078 0.0323557866626834 4.46812049815637 4.46812045099186 2458528.548469743 0.29070161828221 117.413915596855 44.7119750319058 64.7626660342089 99437.9323021147 T 25 CATAB v2.0f-lin.ifort 2020-Nov-13 02:41:58 2020-Nov-13 02:41 Alternate Designations  1998 RP42 = 2000 CS44  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-04 02:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin