+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1681622278472183 2.5633e-08   a 2.442512593304802 8.9039e-09 au q 2.03177423406978 6.2362e-08 au i 1.595961692258721 4.6196e-06 deg node 227.2810066423866 0.00010799 deg peri 76.11440037797709 0.00010903 deg M 95.2293346485154 1.5501e-05 deg tp 2458831.673690142284 (2019-Dec-14.17369014) 5.9673e-05 TDB period 1394.291706844849 3.82 7.6241e-06 2.087e-08 d yr n .2581956116017115 1.4118e-09 deg/d Q 2.853250952539825 1.0401e-08 au   Orbit Determination Parameters    # obs. used (total)      1078      data-arc span      10527 days (28.82 yr)      first obs. used      1992-04-07      last obs. used      2021-02-01      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52357      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:25:12   Additional Information  Earth MOID = 1.01522 au   Jupiter MOID = 2.37192 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 15.66   n/a E2021B10   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-Apr-16 14:39 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin