+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   190109 (2004 TX355) Classification: Main-belt Asteroid          SPK-ID: 2190109 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2392325330580695 6.5853e-08   a 2.607609236632933 3.129e-08 au q 1.983784273727617 1.8442e-07 au i 14.31716165634031 7.4565e-06 deg node 137.7786779661064 2.4489e-05 deg peri 237.2467871645231 3.1915e-05 deg M 315.9138102171891 3.0755e-05 deg tp 2459388.848539991327 (2021-Jun-23.34853999) 0.00013422 TDB period 1538.02074370498 4.21 2.7683e-05 7.579e-08 d yr n .2340670640974492 4.213e-09 deg/d Q 3.231434199538249 3.8775e-08 au   Orbit Determination Parameters    # obs. used (total)      235      data-arc span      7206 days (19.73 yr)      first obs. used      2000-11-26      last obs. used      2020-08-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .59332      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 22:06:15   Additional Information  Earth MOID = 1.01927 au   Jupiter MOID = 2.33774 au   T_jup = 3.327  [ 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 15.82   n/a E2021B55   190109 (2004 TX355)          Discovered 2004-Oct-07 by LINEAR at Socorro Reference: 20080819/Numbers.arc Last Updated: 2008-08-25 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-15 09:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin