+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2141073042831101 6.8685e-08   a 2.285419288543448 1.7491e-08 au q 1.796094325516787 1.5813e-07 au i 5.050840627153366 8.0018e-06 deg node 295.4389120384566 7.4454e-05 deg peri 62.63636388764555 7.7235e-05 deg M 262.3115393260467 2.3634e-05 deg tp 2459542.942788635037 (2021-Nov-24.44278863) 8.5287e-05 TDB period 1261.964852942794 3.46 1.4487e-05 3.966e-08 d yr n .2852694345333873 3.2749e-09 deg/d Q 2.774744251570109 2.1236e-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.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53152      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 06:05:43   Additional Information  Earth MOID = .797028 au   Jupiter MOID = 2.69576 au   T_jup = 3.566  [ hide covariance matrix ] Orbital Elements at Epoch 2456948.5 (2014-Oct-18.0) TDB Reference: JPL 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2139454225849123 6.8911e-08   q 1.796911487980383 1.5871e-07 au tp 2457016.481252310244 (2014-Dec-24.98125231) 7.0332e-05 TDB node 295.6083812384454 7.4341e-05 deg peri 62.09583940228948 7.714e-05 deg i 5.05552474772722 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.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53152      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 06:05:43   Additional Information  Jupiter MOID = 2.69576 au   T_jup = 3.566  Orbit Covariance (6×6)   e q tp node peri i e 4.748764696992914E-15 -1.089534038590459E-14 3.609722985173201E-13 -2.152025233184078E-14 -1.659216234091147E-13 -1.260022305236498E-14 q -1.089534038590459E-14 2.519019026520399E-14 -4.638915697527914E-13 4.85855606156648E-14 4.761644014805648E-13 2.907650282929309E-14 tp 3.609722985173201E-13 -4.638915697527914E-13 4.946603128383712E-9 -3.656475566271169E-12 1.452148187717358E-9 -1.880352018396904E-11 node -2.152025233184078E-14 4.85855606156648E-14 -3.656475566271169E-12 5.526551656600158E-9 -5.504263948961202E-9 -1.328004395288584E-10 peri -1.659216234091147E-13 4.761644014805648E-13 1.452148187717358E-9 -5.504263948961202E-9 5.950513279717498E-9 1.274829272974882E-10 i -1.260022305236498E-14 2.907650282929309E-14 -1.880352018396904E-11 -1.328004395288584E-10 1.274829272974882E-10 6.406352950239797E-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-May-12 03:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin