+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   85500 (1997 TP13) Classification: Main-belt Asteroid          SPK-ID: 2085500 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .195890220473397 3.2189e-08   a 2.369961234721719 7.454e-09 au q 1.905709005938678 7.7427e-08 au i 3.577434723776692 4.2199e-06 deg node 356.9825978643887 5.0701e-05 deg peri 42.57342669399289 5.193e-05 deg M 47.39968779877621 9.6617e-06 deg tp 2458825.037921035922 (2019-Dec-07.53792104) 3.5794e-05 TDB period 1332.632161950629 3.65 6.2871e-06 1.721e-08 d yr n .2701420619123083 1.2745e-09 deg/d Q 2.834213463504761 8.9142e-09 au   Orbit Determination Parameters    # obs. used (total)      906      data-arc span      10670 days (29.21 yr)      first obs. used      1990-11-11      last obs. used      2020-01-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48062      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 20:33:13   Additional Information  Earth MOID = .915209 au   Jupiter MOID = 2.59286 au   T_jup = 3.517  [ hide covariance matrix ] Orbital Elements at Epoch 2457181.5 (2015-Jun-08.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1960573208535114 3.2296e-08   q 1.905291694179675 7.769e-08 au tp 2457489.702012782765 (2016-Apr-11.20201278) 3.6454e-05 TDB node 357.1236454742454 5.0539e-05 deg peri 41.86875241215954 5.1777e-05 deg i 3.584779210918928 4.2251e-06 deg   Orbit Determination Parameters    # obs. used (total)      906      data-arc span      10670 days (29.21 yr)      first obs. used      1990-11-11      last obs. used      2020-01-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48062      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 20:33:13   Additional Information  Jupiter MOID = 2.59286 au   T_jup = 3.517  Orbit Covariance (6×6)   e q tp node peri i e 1.043028982025401E-15 -2.501890216574805E-15 -3.005331849622809E-13 1.375443525449731E-14 -8.093861173038875E-14 -1.196143374923111E-15 q -2.501890216574805E-15 6.035712337318177E-15 6.722505308668537E-13 -3.369651208547115E-14 1.787951604566694E-13 3.015363917734362E-15 tp -3.005331849622809E-13 6.722505308668537E-13 1.328921372533337E-9 -1.034773967003184E-11 4.180630445449297E-10 1.370313657621313E-12 node 1.375443525449731E-14 -3.369651208547115E-14 -1.034773967003184E-11 2.554184809874559E-9 -2.55123542769552E-9 -1.613672825521249E-11 peri -8.093861173038875E-14 1.787951604566694E-13 4.180630445449297E-10 -2.55123542769552E-9 2.680834295595592E-9 1.646626584700827E-11 i -1.196143374923111E-15 3.015363917734362E-15 1.370313657621313E-12 -1.613672825521249E-11 1.646626584700827E-11 1.785158173885603E-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 15.8   n/a MPO299497   85500 (1997 TP13)          Discovered 1997-Oct-03 by Spacewatch at Kitt Peak Reference: 20040830/Numbers.arc Last Updated: 2004-09-06 [ show close-approach data ] Alternate Designations  1997 TP13 = 1999 EP14  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-27 02:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin