+ 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 ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2765887231823124 4.6887e-08   a 2.426020266329413 1.3443e-08 au q 1.755010418450947 1.0987e-07 au i 10.00015177036859 4.3139e-06 deg node 7.066507426155415 2.6745e-05 deg peri 359.3080982687281 2.8318e-05 deg M 80.12066752903468 1.3956e-05 deg tp 2458893.327648865419 (2020-Feb-13.82764887) 5.16e-05 TDB period 1380.193772953472 3.78 1.1472e-05 3.141e-08 d yr n .2608329403121687 2.1679e-09 deg/d Q 3.097030114207878 1.7161e-08 au   Orbit Determination Parameters    # obs. used (total)      1083      data-arc span      10024 days (27.44 yr)      first obs. used      1993-10-09      last obs. used      2021-03-20      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51876      source      ORB      producer      Otto Matic      solution date      2021-May-04 08:06:20   Additional Information  Earth MOID = .752162 au   Jupiter MOID = 2.36524 au   T_jup = 3.437  [ hide covariance matrix ] Orbital Elements at Epoch 2457332.5 (2015-Nov-06.0) TDB Reference: JPL 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2784150462423327 4.7018e-08   q 1.749501429420684 1.1035e-07 au tp 2457513.537571663606 (2016-May-05.03757166) 4.3515e-05 TDB node 7.15819454870802 2.6691e-05 deg peri 359.1931751577453 2.8239e-05 deg i 10.01636170018036 4.3191e-06 deg   Orbit Determination Parameters    # obs. used (total)      1083      data-arc span      10024 days (27.44 yr)      first obs. used      1993-10-09      last obs. used      2021-03-20      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51876      source      ORB      producer      Otto Matic      solution date      2021-May-04 08:06:20   Additional Information  Jupiter MOID = 2.36524 au   T_jup = 3.437  Orbit Covariance (6×6)   e q tp node peri i e 2.210707823500295E-15 -5.172471471068253E-15 6.526007262802474E-13 8.870066026490243E-15 2.855350732029786E-14 9.526134377878366E-17 q -5.172471471068253E-15 1.217749060075557E-14 -1.33244408345605E-12 -2.207009352050993E-14 -2.637205038084194E-14 -8.417175916756291E-16 tp 6.526007262802474E-13 -1.33244408345605E-12 1.893585214696416E-9 -1.316606926454805E-11 4.144544662086165E-10 -5.702490183314003E-12 node 8.870066026490243E-15 -2.207009352050993E-14 -1.316606926454805E-11 7.124211051476487E-10 -7.043479754935082E-10 -2.069408352085101E-11 peri 2.855350732029786E-14 -2.637205038084194E-14 4.144544662086165E-10 -7.043479754935082E-10 7.974693374307501E-10 1.908553664342277E-11 i 9.526134377878366E-17 -8.417175916756291E-16 -5.702490183314003E-12 -2.069408352085101E-11 1.908553664342277E-11 1.865432642886462E-11 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.79   n/a MPCxxxxx   85254 (1993 TG12)          Discovered 1993-Oct-14 by Holt, H. E. at Palomar Reference: 20040830/Numbers.arc Last Updated: 2004-09-06 Alternate Designations  1993 TG12 = 2002 BY3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-13 14:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin