+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   308076 (2004 TX240) Classification: Main-belt Asteroid          SPK-ID: 2308076 [ 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 7 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2140018971325089 6.8648e-08   a 2.285483868572185 1.7572e-08 au q 1.796385984831991 1.5796e-07 au i 5.050844870882308 8.0018e-06 deg node 295.4396145050937 7.4452e-05 deg peri 62.64557474397439 7.7238e-05 deg M 205.236651150573 2.3254e-05 deg tp 2459543.039403024062 (2021-Nov-24.53940302) 8.5333e-05 TDB period 1262.018343107116 3.46 1.4555e-05 3.985e-08 d yr n .2852573434976168 3.2898e-09 deg/d Q 2.774581752312378 2.1333e-08 au   Orbit Determination Parameters    # obs. used (total)      137      data-arc span      6204 days (16.99 yr)      first obs. used      2002-01-12      last obs. used      2019-01-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 19:19:06   Additional Information  Earth MOID = .798977 au   Jupiter MOID = 2.69519 au   T_jup = 3.566  [ hide covariance matrix ] Orbital Elements at Epoch 2456948.5 (2014-Oct-18.0) TDB Reference: JPL 7 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2139454434862917 6.8911e-08   q 1.796911442320669 1.5871e-07 au tp 2457016.481234670627 (2014-Dec-24.98123467) 7.0332e-05 TDB node 295.608334023865 7.4341e-05 deg peri 62.09587524720747 7.714e-05 deg i 5.055527234861685 8.004e-06 deg   Orbit Determination Parameters    # obs. used (total)      137      data-arc span      6204 days (16.99 yr)      first obs. used      2002-01-12      last obs. used      2019-01-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 19:19:06   Additional Information  Jupiter MOID = 2.69519 au   T_jup = 3.566  Orbit Covariance (6×6)   e q tp node peri i e 4.748764918242819E-15 -1.089534093170296E-14 3.609723788901963E-13 -2.152048202508261E-14 -1.659214098081903E-13 -1.260021400788139E-14 q -1.089534093170296E-14 2.519019160619833E-14 -4.638917406302356E-13 4.858608236198315E-14 4.761639200928222E-13 2.907648338554561E-14 tp 3.609723788901963E-13 -4.638917406302356E-13 4.946602791463197E-9 -3.656612792639893E-12 1.452148201065371E-9 -1.880353718495988E-11 node -2.152048202508261E-14 4.858608236198315E-14 -3.656612792639893E-12 5.526544180851499E-9 -5.50425651124838E-9 -1.328002330858286E-10 peri -1.659214098081903E-13 4.761639200928222E-13 1.452148201065371E-9 -5.50425651124838E-9 5.950505840751012E-9 1.274827162126282E-10 i -1.260021400788139E-14 2.907648338554561E-14 -1.880353718495988E-11 -1.328002330858286E-10 1.274827162126282E-10 6.406355102926287E-11 [ 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 17.5   n/a MPO455269   308076 (2004 TX240)          Discovered 2004-Oct-10 by LINEAR at Socorro Reference: 20111210/Numbers.arc Last Updated: 2011-12-12 [ show close-approach data ] Alternate Designations  2004 TX240 = 2002 AK192  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 11:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin