+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   97279 (1999 XT144) Classification: Main-belt Asteroid          SPK-ID: 2097279 [ 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 .06146054137788871 4.8929e-08   a 3.184755849234928 4.0354e-08 au q 2.989019030584551 1.7128e-07 au i 18.20146640905807 5.5656e-06 deg node 104.4334938269046 2.0028e-05 deg peri 341.3457791293514 5.815e-05 deg M 230.6518373325028 5.5577e-05 deg tp 2459746.382479968693 (2022-Jun-15.88247997) 0.0003227 TDB period 2075.929702062966 5.68 3.9457e-05 1.08e-07 d yr n .17341627688175 3.2961e-09 deg/d Q 3.380492667885304 4.2835e-08 au   Orbit Determination Parameters    # obs. used (total)      592      data-arc span      6765 days (18.52 yr)      first obs. used      1999-12-02      last obs. used      2018-06-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61105      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 08:53:45   Additional Information  Earth MOID = 2.0099 au   Jupiter MOID = 1.80247 au   T_jup = 3.117  [ hide covariance matrix ] Orbital Elements at Epoch 2456530.5 (2013-Aug-26.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0625523834517729 4.8239e-08   q 2.985342412747678 1.6799e-07 au tp 2455563.665479417041 (2011-Jan-02.16547942) 0.00030953 TDB node 104.5713459992414 2.0108e-05 deg peri 336.1964579842258 5.7248e-05 deg i 18.15986430970491 5.5507e-06 deg   Orbit Determination Parameters    # obs. used (total)      592      data-arc span      6765 days (18.52 yr)      first obs. used      1999-12-02      last obs. used      2018-06-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .61105      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 08:53:45   Additional Information  Jupiter MOID = 1.80247 au   T_jup = 3.117  Orbit Covariance (6×6)   e q tp node peri i e 2.326990132534969E-15 -7.932204360815376E-15 2.01855508467952E-13 -2.417962929054025E-15 2.993279623147342E-14 -3.682263408432444E-15 q -7.932204360815376E-15 2.821912714127596E-14 -7.090006908850789E-13 5.908683415899038E-16 1.609425397759217E-16 1.710296043990157E-14 tp 2.01855508467952E-13 -7.090006908850789E-13 9.580627668583048E-8 8.758312173073139E-11 1.662720588341605E-8 2.821506668855006E-11 node -2.417962929054025E-15 5.908683415899038E-16 8.758312173073139E-11 4.043488955086839E-10 -3.696801038584645E-10 1.786940569726121E-11 peri 2.993279623147342E-14 1.609425397759217E-16 1.662720588341605E-8 -3.696801038584645E-10 3.277357754813168E-9 -1.168037228631207E-11 i -3.682263408432444E-15 1.710296043990157E-14 2.821506668855006E-11 1.786940569726121E-11 -1.168037228631207E-11 3.081046401796961E-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 14.2   n/a MPO351538   97279 (1999 XT144)          Discovered 1999-Dec-06 by Korlevic, K. at Visnjan Reference: 20050224/Numbers.arc Last Updated: 2005-02-28 [ show close-approach data ] Alternate Designations  1999 XT144 = 2001 FJ151  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-03 16:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin