+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2020 TB12) Classification: Apollo [NEO, PHA]          SPK-ID: 54092465 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5196634862945844 4.5915e-06   a 2.027311586479136 1.9149e-05 au q .9737917796439833 1.6926e-07 au i 8.914490849537906 5.5948e-05 deg node 126.8325074442265 0.00012509 deg peri 353.954297451211 5.8218e-05 deg M 278.8969622295393 0.0011367 deg tp 2459238.027447129790 (2021-Jan-23.52744713) 0.00010373 TDB period 1054.336351848326 2.89 0.014938 4.09e-05 d yr n .3414470148628516 4.8376e-06 deg/d Q 3.080831393314289 2.91e-05 au   Orbit Determination Parameters    # obs. used (total)      89      data-arc span      94 days      first obs. used      2020-10-15      last obs. used      2021-01-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      4      norm. resid. RMS      .48254      source      ORB      producer      Otto Matic      solution date      2021-Jan-17 06:06:45   Additional Information  Earth MOID = .00885839 au   Jupiter MOID = 2.02804 au   T_jup = 3.620  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 21.929   .40554 18 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-23 05:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin