+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101353 (1998 TC34) Classification: Main-belt Asteroid          SPK-ID: 2101353 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2237772125417697 3.747e-08   a 2.35402933755168 8.6355e-09 au q 1.827251214152816 8.6053e-08 au i 3.452187769017557 4.0989e-06 deg node 95.74039467078626 6.6262e-05 deg peri 275.0977449295622 6.6847e-05 deg M 62.47231629719624 9.9679e-06 deg tp 2458971.570720576837 (2020-May-02.07072058) 3.5915e-05 TDB period 1319.216982451431 3.61 7.2591e-06 1.987e-08 d yr n .2728891492368686 1.5016e-09 deg/d Q 2.880807460950543 1.0568e-08 au   Orbit Determination Parameters    # obs. used (total)      670      data-arc span      10185 days (27.89 yr)      first obs. used      1993-03-24      last obs. used      2021-02-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53149      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:36:23   Additional Information  Earth MOID = .829599 au   Jupiter MOID = 2.5873 au   T_jup = 3.519  [ hide covariance matrix ] Orbital Elements at Epoch 2457204.5 (2015-Jul-01.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .225324965283708 3.7579e-08   q 1.822692943633309 8.6413e-08 au tp 2457652.628741676080 (2016-Sep-21.12874168) 3.2715e-05 TDB node 95.76653317830119 6.634e-05 deg peri 275.1030801977847 6.6911e-05 deg i 3.4515299165903 4.0978e-06 deg   Orbit Determination Parameters    # obs. used (total)      670      data-arc span      10185 days (27.89 yr)      first obs. used      1993-03-24      last obs. used      2021-02-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .53149      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 15:36:23   Additional Information  Jupiter MOID = 2.5873 au   T_jup = 3.519  Orbit Covariance (6×6)   e q tp node peri i e 1.412195916797256E-15 -3.238838675343596E-15 2.741213698538989E-13 3.59620021750459E-15 4.702337504884839E-14 -1.120934870598804E-15 q -3.238838675343596E-15 7.467232796101345E-15 -5.819515152195595E-13 -9.075513350131711E-15 -9.917576558075456E-14 2.596682769916629E-15 tp 2.741213698538989E-13 -5.819515152195595E-13 1.070265559844397E-9 -6.003924475307358E-12 2.979316646724615E-10 -1.948827622280793E-13 node 3.59620021750459E-15 -9.075513350131711E-15 -6.003924475307358E-12 4.400966988295113E-9 -4.394298872688705E-9 -3.545037644570703E-11 peri 4.702337504884839E-14 -9.917576558075456E-14 2.979316646724615E-10 -4.394298872688705E-9 4.477057385152337E-9 3.53674456082772E-11 i -1.120934870598804E-15 2.596682769916629E-15 -1.948827622280793E-13 -3.545037644570703E-11 3.53674456082772E-11 1.679234761182813E-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 16.1   n/a MPO436473   101353 (1998 TC34)          Discovered 1998-Oct-14 by LONEOS at Anderson Mesa Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-17 22:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin