+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100414 (1996 AJ18) Classification: Main-belt Asteroid          SPK-ID: 2100414 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1554324087099269 5.8249e-08   a 2.777798921831103 1.7433e-08 au q 2.346038944499056 1.6104e-07 au i 5.583881144665047 4.9119e-06 deg node 284.2292193692343 5.9767e-05 deg peri 61.13134708404263 6.1322e-05 deg M 263.2028391251407 1.6773e-05 deg tp 2459655.184084800953 (2022-Mar-16.68408480) 8.103e-05 TDB period 1691.023466483266 4.63 1.5919e-05 4.358e-08 d yr n .2128888256936335 2.0041e-09 deg/d Q 3.209558899163149 2.0143e-08 au   Orbit Determination Parameters    # obs. used (total)      408      data-arc span      8871 days (24.29 yr)      first obs. used      1996-01-13      last obs. used      2020-04-27      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .55847      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:32:04   Additional Information  Earth MOID = 1.34287 au   Jupiter MOID = 2.21546 au   T_jup = 3.310  [ hide covariance matrix ] Orbital Elements at Epoch 2457252.5 (2015-Aug-18.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1538469256413544 5.8122e-08   q 2.352250877397125 1.6026e-07 au tp 2457963.985801330591 (2017-Jul-29.48580133) 7.4386e-05 TDB node 284.2695808378879 5.9757e-05 deg peri 61.11816689434328 6.1349e-05 deg i 5.582317269893972 4.9115e-06 deg   Orbit Determination Parameters    # obs. used (total)      408      data-arc span      8871 days (24.29 yr)      first obs. used      1996-01-13      last obs. used      2020-04-27      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .55847      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:32:04   Additional Information  Jupiter MOID = 2.21546 au   T_jup = 3.310  Orbit Covariance (6×6)   e q tp node peri i e 3.378158110554211E-15 -9.275142422440674E-15 5.650299953593622E-13 9.2561361257899E-15 2.518556815191303E-14 -1.837466199474647E-15 q -9.275142422440674E-15 2.568340893813035E-14 -1.160690184662322E-12 -3.111667718908002E-14 -1.007691373919285E-14 5.263254884247359E-15 tp 5.650299953593622E-13 -1.160690184662322E-12 5.53333975860708E-9 5.664091848889695E-12 1.07517205588059E-9 1.748986635490113E-13 node 9.2561361257899E-15 -3.111667718908002E-14 5.664091848889695E-12 3.570868768057988E-9 -3.552828481431458E-9 8.750019935139341E-11 peri 2.518556815191303E-14 -1.007691373919285E-14 1.07517205588059E-9 -3.552828481431458E-9 3.76375847185247E-9 -8.699456429481905E-11 i -1.837466199474647E-15 5.263254884247359E-15 1.748986635490113E-13 8.750019935139341E-11 -8.699456429481905E-11 2.412286121346047E-11 [ 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 E2021B55   100414 (1996 AJ18)          Discovered 1996-Jan-13 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 Alternate Designations  1996 AJ18 = 2003 QR75  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-22 20:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin