+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   312144 (2007 TW373) Classification: Main-belt Asteroid          SPK-ID: 2312144 [ 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 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .203163163617324 6.4569e-08   a 2.743425212616882 2.5263e-08 au q 2.186062267274106 1.8272e-07 au i 6.84278660708344 7.5593e-06 deg node 334.4651799518908 4.8399e-05 deg peri 64.78379780500015 5.2283e-05 deg M 272.6230368504087 1.9476e-05 deg tp 2459403.339975489646 (2021-Jul-07.83997549) 9.2519e-05 TDB period 1659.732565069706 4.54 2.2925e-05 6.277e-08 d yr n .2169024140252864 2.996e-09 deg/d Q 3.300788157959657 3.0395e-08 au   Orbit Determination Parameters    # obs. used (total)      138      data-arc span      6581 days (18.02 yr)      first obs. used      2002-08-08      last obs. used      2020-08-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .66067      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 18:48:29   Additional Information  Earth MOID = 1.20385 au   Jupiter MOID = 2.19176 au   T_jup = 3.308  [ hide covariance matrix ] Orbital Elements at Epoch 2457710.5 (2016-Nov-18.0) TDB Reference: JPL 9 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2061529229561506 6.4982e-08   q 2.174598717061335 1.8422e-07 au tp 2457745.957894761595 (2016-Dec-23.45789476) 8.1077e-05 TDB node 334.6777254220355 4.8484e-05 deg peri 64.65218307993402 5.218e-05 deg i 6.842010626215353 7.5562e-06 deg   Orbit Determination Parameters    # obs. used (total)      138      data-arc span      6581 days (18.02 yr)      first obs. used      2002-08-08      last obs. used      2020-08-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .66067      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 18:48:29   Additional Information  Jupiter MOID = 2.19176 au   T_jup = 3.308  Orbit Covariance (6×6)   e q tp node peri i e 4.222611122602247E-15 -1.190622354831713E-14 -7.350330859439739E-13 6.78324818211354E-14 1.270774674500985E-14 -1.267550561337776E-14 q -1.190622354831713E-14 3.393760386257245E-14 2.464094200670037E-12 -1.910869982128978E-13 4.856236951251353E-14 3.772624665620936E-14 tp -7.350330859439739E-13 2.464094200670037E-12 6.573491410473339E-9 -4.028377366006602E-12 1.577055799819832E-9 1.754398208190916E-11 node 6.78324818211354E-14 -1.910869982128978E-13 -4.028377366006602E-12 2.350694904733025E-9 -2.32954181371079E-9 -3.615012375017342E-11 peri 1.270774674500985E-14 4.856236951251353E-14 1.577055799819832E-9 -2.32954181371079E-9 2.722715040921032E-9 3.936379940739265E-11 i -1.267550561337776E-14 3.772624665620936E-14 1.754398208190916E-11 -3.615012375017342E-11 3.936379940739265E-11 5.709545737953336E-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 17.0   n/a MPO437378   312144 (2007 TW373)          Discovered 2007-Oct-14 by CSS at Catalina Reference: 20120109/Numbers.arc Last Updated: 2012-01-11 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-26 22:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin