+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1076958446670049 4.6436e-08   a 2.712072576555089 1.4294e-08 au q 2.419993629624768 1.3247e-07 au i 11.96620836808433 5.7815e-06 deg node 12.84477126204716 1.6796e-05 deg peri 32.19156439568578 3.3051e-05 deg M 294.4645410024434 2.6415e-05 deg tp 2459297.477968813232 (2021-Mar-23.97796881) 0.0001197 TDB period 1631.362172602613 4.47 1.2897e-05 3.531e-08 d yr n .2206744805328358 1.7446e-09 deg/d Q 3.004151523485409 1.5833e-08 au   Orbit Determination Parameters    # obs. used (total)      956      data-arc span      8035 days (22.00 yr)      first obs. used      1998-11-14      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52262      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 04:08:59   Additional Information  Earth MOID = 1.43567 au   Jupiter MOID = 2.44572 au   T_jup = 3.323  [ hide covariance matrix ] Orbital Elements at Epoch 2457648.5 (2016-Sep-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1096880135145074 4.7008e-08   q 2.414232950814065 1.3447e-07 au tp 2457661.467201711318 (2016-Sep-29.96720171) 0.00011562 TDB node 13.02130203302598 1.6765e-05 deg peri 31.14483878793034 3.2292e-05 deg i 11.98452215303805 5.7857e-06 deg   Orbit Determination Parameters    # obs. used (total)      956      data-arc span      8035 days (22.00 yr)      first obs. used      1998-11-14      last obs. used      2020-11-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52262      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 04:08:59   Additional Information  Jupiter MOID = 2.44572 au   T_jup = 3.323  Orbit Covariance (6×6)   e q tp node peri i e 2.20976069746729E-15 -6.299980770323125E-15 -1.930785859141731E-12 -6.196180996472703E-15 -4.085661083621686E-13 -8.076932007793508E-15 q -6.299980770323125E-15 1.808273780077663E-14 5.155971920915752E-12 1.505396076333696E-14 1.08440659623738E-12 2.413344450360483E-14 tp -1.930785859141731E-12 5.155971920915752E-12 1.336827378777378E-8 4.133090741935883E-11 3.197940173636666E-9 3.813298527849796E-12 node -6.196180996472703E-15 1.505396076333696E-14 4.133090741935883E-11 2.810616938828185E-10 -2.643365162243245E-10 -2.843892509632557E-11 peri -4.085661083621686E-13 1.08440659623738E-12 3.197940173636666E-9 -2.643365162243245E-10 1.042782474932272E-9 2.848186867705574E-11 i -8.076932007793508E-15 2.413344450360483E-14 3.813298527849796E-12 -2.843892509632557E-11 2.848186867705574E-11 3.347385082163424E-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 15.0   n/a MPO439561   74348 (1998 VT53)          Discovered 1998-Nov-14 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1998 VT53 = 2000 EA89  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-23 02:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin