+ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .195890219702245 3.2152e-08   a 2.369961234772019 7.4508e-09 au q 1.905709007806724 7.7334e-08 au i 3.577434552864107 4.2143e-06 deg node 356.982597746565 5.0701e-05 deg peri 42.57342705260557 5.1929e-05 deg M 47.39968756640133 9.6538e-06 deg tp 2458825.037921890531 (2019-Dec-07.53792189) 3.5766e-05 TDB period 1332.632161993054 3.65 6.2844e-06 1.721e-08 d yr n .2701420619037082 1.2739e-09 deg/d Q 2.834213461737313 8.9103e-09 au   Orbit Determination Parameters    # obs. used (total)      911      data-arc span      10738 days (29.40 yr)      first obs. used      1990-11-11      last obs. used      2020-04-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48581      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:00:46   Additional Information  Earth MOID = .915209 au   Jupiter MOID = 2.59286 au   T_jup = 3.517  [ hide covariance matrix ] Orbital Elements at Epoch 2457187.5 (2015-Jun-14.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1960555740058516 3.226e-08   q 1.905304558246356 7.7596e-08 au tp 2457489.699513714462 (2016-Apr-11.19951371) 3.6434e-05 TDB node 357.1236486818405 5.0538e-05 deg peri 41.8673657984757 5.1775e-05 deg i 3.584778934079146 4.2195e-06 deg   Orbit Determination Parameters    # obs. used (total)      911      data-arc span      10738 days (29.40 yr)      first obs. used      1990-11-11      last obs. used      2020-04-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48581      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:00:46   Additional Information  Jupiter MOID = 2.59286 au   T_jup = 3.517  Orbit Covariance (6×6)   e q tp node peri i e 1.040677138991821E-15 -2.496038350444111E-15 -2.98666834368405E-13 1.369965957576762E-14 -8.048673518231051E-14 -1.186483768274587E-15 q -2.496038350444111E-15 6.021153396033107E-15 6.675878211829366E-13 -3.355998956737337E-14 1.776637577214426E-13 2.991306978394573E-15 tp -2.98666834368405E-13 6.675878211829366E-13 1.327450930036209E-9 -1.030418794000057E-11 4.177059492627751E-10 1.363027889326218E-12 node 1.369965957576762E-14 -3.355998956737337E-14 -1.030418794000057E-11 2.55411369152889E-9 -2.551155034930634E-9 -1.608734650273067E-11 peri -8.048673518231051E-14 1.776637577214426E-13 4.177059492627751E-10 -2.551155034930634E-9 2.680677645504656E-9 1.641534849482088E-11 i -1.186483768274587E-15 2.991306978394573E-15 1.363027889326218E-12 -1.608734650273067E-11 1.641534849482088E-11 1.780441175669273E-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 ] 2021-Jan-17 20:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin