+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   74348 (1998 VT53) Classification: Main-belt Asteroid          SPK-ID: 2074348 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1076251906000807 4.6367e-08   a 2.711339291949323 1.4212e-08 au q 2.419530883871789 1.3232e-07 au i 11.96782839600771 5.774e-06 deg node 12.84055538363504 1.6574e-05 deg peri 32.34516038592845 3.2996e-05 deg M 338.4727538012999 2.6425e-05 deg tp 2459298.012480818285 (2021-Mar-24.51248082) 0.00011971 TDB period 1630.700590803031 4.46 1.2821e-05 3.51e-08 d yr n .2207640090586585 1.7357e-09 deg/d Q 3.003147700026856 1.5741e-08 au   Orbit Determination Parameters    # obs. used (total)      975      data-arc span      8061 days (22.07 yr)      first obs. used      1998-11-14      last obs. used      2020-12-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51936      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 06:57:15   Additional Information  Earth MOID = 1.43426 au   Jupiter MOID = 2.44498 au   T_jup = 3.323  [ show covariance matrix ] [ 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 15.0   n/a MPO439561   74348 (1998 VT53)          Discovered 1998-Nov-14 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2004-Sep-03 06:45 < 00:01 Hebe 0.0336914492778291 0.0336902813293343 0.0336926172635062 7.00030675891123 7.00030673255272 2453251.781118206 0.467802722516869 98.3215131726042 41.3346562357977 -62.6295259080362 110795.310893293 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 06:57:17 2021-Feb-24 06:57 2174-Jun-16 22:09 < 00:01 Europ 0.0495330630210646 0.0495131023065183 0.0495530450770993 5.16923401826364 5.16923397675387 2515264.422986625 0.702087967998629 1903.13041059688 40.3840567684579 -58.481567709708 156367.475416268 T 23 CATAB v2.0f-lin.ifort 2021-Feb-24 06:57:17 2021-Feb-24 06:57 Alternate Designations  1998 VT53 = 2000 EA89  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-03 22:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin