+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (2021 BP2) Classification: Apollo [NEO]          SPK-ID: 54106578 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459233.5 (2021-Jan-19.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .5695581951460627 0.0014314   a 1.81163191565075 0.0052281 au q .7798021115037048 0.0003428 au i 2.01561840903828 0.0041785 deg node 301.0756093743047 0.0011886 deg peri 244.6716714193164 0.0029672 deg M 342.1192918674452 0.090377 deg tp 2459277.736991647707 (2021-Mar-04.23699165) 0.032103 TDB period 890.6424105306992 2.44 3.8554 0.01056 d yr n .4042026246936635 0.0017497 deg/d Q 2.843461719797795 0.0082059 au   Orbit Determination Parameters    # obs. used (total)      14      data-arc span      2 days      first obs. used      2021-01-18      last obs. used      2021-01-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      8      norm. resid. RMS      .40705      source      ORB      producer      Otto Matic      solution date      2021-Jan-20 09:42:03   Additional Information  Earth MOID = 2.95527E-5 au   Jupiter MOID = 2.12159 au   T_jup = 3.842  [ 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 27.92   .35491 E2021-BA4 autocmod 2.8 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Apr-13 12:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin