+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   85254 (1993 TG12) Classification: Main-belt Asteroid          SPK-ID: 2085254 [ 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 .2764800497733658 4.8627e-08   a 2.425549294248675 1.5053e-08 au q 1.75493330464705 1.1536e-07 au i 10.00028609329736 5.1909e-06 deg node 7.07223779040659 2.7845e-05 deg peri 359.2780122549042 2.9295e-05 deg M 27.97847700589394 1.4048e-05 deg tp 2458893.265346188301 (2020-Feb-13.76534619) 5.31e-05 TDB period 1379.79187945359 3.78 1.2845e-05 3.517e-08 d yr n .260908913409871 2.4288e-09 deg/d Q 3.096165283850301 1.9215e-08 au   Orbit Determination Parameters    # obs. used (total)      882      data-arc span      9883 days (27.06 yr)      first obs. used      1993-10-09      last obs. used      2020-10-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54527      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:01:33   Additional Information  Earth MOID = .753619 au   Jupiter MOID = 2.36505 au   T_jup = 3.438  [ hide covariance matrix ] Orbital Elements at Epoch 2456846.5 (2014-Jul-08.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2784566434208671 4.8757e-08   q 1.748986406637331 1.158e-07 au tp 2457513.683661911598 (2016-May-05.18366191) 4.4028e-05 TDB node 7.163345160989376 2.7786e-05 deg peri 359.2461965798691 2.9212e-05 deg i 10.01715861303998 5.1979e-06 deg   Orbit Determination Parameters    # obs. used (total)      882      data-arc span      9883 days (27.06 yr)      first obs. used      1993-10-09      last obs. used      2020-10-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54527      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 21:01:33   Additional Information  Jupiter MOID = 2.36505 au   T_jup = 3.438  Orbit Covariance (6×6)   e q tp node peri i e 2.377212945195857E-15 -5.623191943229023E-15 6.123098856060335E-13 8.866905843395803E-15 4.049102884278775E-14 1.633519255393854E-17 q -5.623191943229023E-15 1.340965666535394E-14 -1.203382988414121E-12 -2.06545017358884E-14 -6.065942561567597E-14 -3.025334084374878E-18 tp 6.123098856060335E-13 -1.203382988414121E-12 1.938478967538196E-9 -6.651984711016415E-12 4.046872247721515E-10 -3.012969922036125E-12 node 8.866905843395803E-15 -2.06545017358884E-14 -6.651984711016415E-12 7.720710057228764E-10 -7.616432170819435E-10 7.218218959949505E-13 peri 4.049102884278775E-14 -6.065942561567597E-14 4.046872247721515E-10 -7.616432170819435E-10 8.533470944163564E-10 -1.425904312703119E-12 i 1.633519255393854E-17 -3.025334084374878E-18 -3.012969922036125E-12 7.218218959949505E-13 -1.425904312703119E-12 2.701826105841337E-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 14.8   n/a MPO439613   85254 (1993 TG12)          Discovered 1993-Oct-14 by Holt, H. E. at Palomar Reference: 20040830/Numbers.arc Last Updated: 2004-09-06 [ show close-approach data ] Alternate Designations  1993 TG12 = 2002 BY3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-17 11:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin