+ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06146062525871017 4.5046e-08   a 3.184755823953528 3.1885e-08 au q 2.989018739717026 1.5705e-07 au i 18.20146429152247 5.0076e-06 deg node 104.4335266045499 1.5118e-05 deg peri 341.3457629337406 5.0438e-05 deg M 230.6518318051768 5.1344e-05 deg tp 2459746.382502960353 (2022-Jun-15.88250296) 0.00030108 TDB period 2075.929677344081 5.68 3.1176e-05 8.536e-08 d yr n .1734162789466836 2.6043e-09 deg/d Q 3.380492908190031 3.3845e-08 au   Orbit Determination Parameters    # obs. used (total)      718      data-arc span      7593 days (20.79 yr)      first obs. used      1999-12-02      last obs. used      2020-09-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58502      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:19:04   Additional Information  Earth MOID = 2.0099 au   Jupiter MOID = 1.80247 au   T_jup = 3.117  [ hide covariance matrix ] Orbital Elements at Epoch 2457321.5 (2015-Oct-26.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06223497007020484 4.503e-08   q 2.985886939821361 1.5757e-07 au tp 2457641.922133740319 (2016-Sep-10.42213374) 0.00028225 TDB node 104.5621204687235 1.5181e-05 deg peri 336.6062232155597 4.9626e-05 deg i 18.1584219506116 4.9941e-06 deg   Orbit Determination Parameters    # obs. used (total)      718      data-arc span      7593 days (20.79 yr)      first obs. used      1999-12-02      last obs. used      2020-09-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58502      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:19:04   Additional Information  Jupiter MOID = 1.80247 au   T_jup = 3.117  Orbit Covariance (6×6)   e q tp node peri i e 2.027674601649936E-15 -6.989546520417024E-15 -1.697528725455303E-12 -3.118933163237661E-15 -2.089652450919638E-13 -2.682681804395265E-15 q -6.989546520417024E-15 2.482781348030393E-14 8.857533339700351E-12 6.500460466601585E-15 1.208430657459593E-12 1.319521619075715E-14 tp -1.697528725455303E-12 8.857533339700351E-12 7.966385249862857E-8 -4.06515297503949E-14 1.335755366879348E-8 4.386138678535835E-11 node -3.118933163237661E-15 6.500460466601585E-15 -4.06515297503949E-14 2.304770357113775E-10 -2.189425626873517E-10 1.436781483945447E-11 peri -2.089652450919638E-13 1.208430657459593E-12 1.335755366879348E-8 -2.189425626873517E-10 2.462757601442561E-9 -6.499937564883049E-12 i -2.682681804395265E-15 1.319521619075715E-14 4.386138678535835E-11 1.436781483945447E-11 -6.499937564883049E-12 2.494071601666754E-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 14.17   n/a E2021B10   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 ] 2021-Feb-25 03:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin