+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   226571 (2003 XX8) Classification: Main-belt Asteroid          SPK-ID: 2226571 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .213333659893119 5.2225e-08   a 3.111196226468361 3.3743e-08 au q 2.447473348830204 1.7774e-07 au i 15.65234686459432 7.6944e-06 deg node 17.99873425912235 1.5124e-05 deg peri 45.50784519028375 2.3749e-05 deg M 3.608695803813075 1.6503e-05 deg tp 2458980.407345993766 (2020-May-10.90734599) 9.1753e-05 TDB period 2004.423713021506 5.49 3.2609e-05 8.928e-08 d yr n .179602744500228 2.9218e-09 deg/d Q 3.774919104106517 4.0941e-08 au   Orbit Determination Parameters    # obs. used (total)      437      data-arc span      7939 days (21.74 yr)      first obs. used      1999-02-18      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54665      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 05:33:38   Additional Information  Earth MOID = 1.48559 au   Jupiter MOID = 1.812 au   T_jup = 3.127  [ hide covariance matrix ] Orbital Elements at Epoch 2457882.5 (2017-May-09.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2115516672200375 5.189e-08   q 2.454918979094321 1.7605e-07 au tp 2456975.397015716036 (2014-Nov-13.89701572) 8.6141e-05 TDB node 18.03070107711134 1.5105e-05 deg peri 45.47703555631556 2.3927e-05 deg i 15.65762314673068 7.6964e-06 deg   Orbit Determination Parameters    # obs. used (total)      437      data-arc span      7939 days (21.74 yr)      first obs. used      1999-02-18      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54665      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 05:33:38   Additional Information  Jupiter MOID = 1.812 au   T_jup = 3.127  Orbit Covariance (6×6)   e q tp node peri i e 2.692611098994971E-15 -9.05747944636474E-15 -2.144512028870162E-12 2.467415575143701E-14 -5.331497707439352E-13 -1.330596361261473E-14 q -9.05747944636474E-15 3.099482681874189E-14 6.707725425970648E-12 -8.643644248372412E-14 1.751310453580816E-12 4.754730288140571E-14 tp -2.144512028870162E-12 6.707725425970648E-12 7.420296956831547E-9 -2.678161797266583E-11 1.584836056137718E-9 2.023881870695336E-12 node 2.467415575143701E-14 -8.643644248372412E-14 -2.678161797266583E-11 2.281531072426825E-10 -2.258399026645149E-10 -1.749234574730304E-11 peri -5.331497707439352E-13 1.751310453580816E-12 1.584836056137718E-9 -2.258399026645149E-10 5.72500053039974E-10 1.796247155475517E-11 i -1.330596361261473E-14 4.754730288140571E-14 2.023881870695336E-12 -1.749234574730304E-11 1.796247155475517E-11 5.92348475260763E-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 15.0   n/a MPO454627   226571 (2003 XX8)          Discovered 2003-Dec-04 by LINEAR at Socorro Reference: 20091202/Numbers.arc Last Updated: 2009-12-04 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1924-Apr-28 05:03 00:06 Jupiter 1.90157675088513 1.90157479485271 1.90157870696663 2.45955989270178 2.27124888934314 2423903.710320464 5.69926031083754 529.276803494067 77.8893435862872 67.537413697605 628186.059440963 T 18 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:39 2020-Dec-18 05:33 1934-Jun-30 11:47 00:04 Jupiter 1.8806265342758 1.88062464049139 1.88062842827413 4.13294890139646 4.02249661750913 2427618.990938937 3.83656478782581 1498.44563370771 66.5591002408729 -87.8608101084734 1900256.34330272 T 18 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:39 2020-Dec-18 05:33 1996-Jan-12 12:00 00:02 Jupiter 1.97907497123693 1.97907382240186 1.97907612007539 1.51226592872755 1.19623159929543 2450094.999871965 1.79621955534807 288.252138830137 132.706592315027 14.3908244391723 833164.068005543 T 18 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:39 2020-Dec-18 05:33 2006-Jan-12 06:43 < 00:01 Jupiter 1.83340790042376 1.83340711658238 1.83340868426566 3.87017477090545 3.74890194269419 2453747.779695961 0.666600081684127 1189.52470663718 34.246712014336 89.7898345102399 2029428.69951975 T 18 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:39 2020-Dec-18 05:33 2077-Jul-31 10:39 00:03 Jupiter 1.82056924041868 1.82056852436668 1.82056995647389 3.50308426012394 3.36765443491676 2479880.943418715 2.87177932412257 3864.62995822325 30.8209451142796 89.8140160589447 2023634.64211487 T 18 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:39 2020-Dec-18 05:33 2149-Feb-27 04:14 00:07 Jupiter 1.84011544994386 1.84011416210328 1.84011673846611 2.97685816711874 2.81798964925821 2506023.676407491 6.87940816524181 1953.34133855455 25.6394551050118 86.6316779714151 836495.066114232 T 18 CATAB v2.0f-lin.ifort 2020-Dec-18 05:33:39 2020-Dec-18 05:33 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-15 15:28 UT (server date/time)   Site Manager:   Ryan S. 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