+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16268 Mcneeley (2000 JD44) Classification: Main-belt Asteroid          SPK-ID: 2016268 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1682295351451536 2.6755e-08   a 2.442272992508427 9.2507e-09 au q 2.031410542281171 6.5628e-08 au i 1.596075643452068 4.6753e-06 deg node 227.27972182871 0.00011566 deg peri 76.07303132395148 0.00011665 deg M 43.6192194908223 1.5507e-05 deg tp 2458831.586202166361 (2019-Dec-14.08620217) 5.9889e-05 TDB period 1394.08655014803 3.82 7.9207e-06 2.169e-08 d yr n .2582336082087396 1.4672e-09 deg/d Q 2.853135442735683 1.0807e-08 au   Orbit Determination Parameters    # obs. used (total)      1021      data-arc span      10450 days (28.61 yr)      first obs. used      1992-04-07      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53052      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 03:02:18   Additional Information  Earth MOID = 1.01684 au   Jupiter MOID = 2.37248 au   T_jup = 3.481  [ 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 15.6   n/a MPO337397   16268 Mcneeley           Discovered 2000 May 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Named in honor of Pam McNeeley for mentoring a finalist in the 2002 Intel Science Talent Search, a science competition for high school seniors. McNeeley is a teacher at the Naperville Central High School, Naperville, Illinois. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020227/MPCPages.arc Last Updated: 2003-10-02 Alternate Designations  2000 JD44 = 1993 SQ7  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-22 04:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin