+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58074 (1612 T-2) Classification: Main-belt Asteroid          SPK-ID: 2058074 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ 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 .2050703530497711 4.1731e-08   a 2.572720297877267 1.2095e-08 au q 2.045131638093264 1.1101e-07 au i 9.846367714474725 5.2147e-06 deg node 348.5847212726035 2.4713e-05 deg peri 17.40382995748693 2.9008e-05 deg M 110.0680389447417 1.6798e-05 deg tp 2458539.664407442582 (2019-Feb-25.16440744) 6.811e-05 TDB period 1507.25691954918 4.13 1.0629e-05 2.91e-08 d yr n .2388444832004327 1.6843e-09 deg/d Q 3.10030895766127 1.4575e-08 au   Orbit Determination Parameters    # obs. used (total)      613      data-arc span      17039 days (46.65 yr)      first obs. used      1973-09-19      last obs. used      2020-05-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54806      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:52:27   Additional Information  Earth MOID = 1.04511 au   Jupiter MOID = 2.36914 au   T_jup = 3.379  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.7   n/a MPO452958   58074 (1612 T-2)          Discovered 1973-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar Reference: 20030318/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1612 T-2 = 2000 EB188 = 2002 RU154  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 11:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin