+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   103472 (2000 AM212) Classification: Main-belt Asteroid          SPK-ID: 2103472 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1608195433675132 4.7399e-08   a 2.421572122450669 9.7357e-09 au q 2.032135999486653 1.1406e-07 au i 3.204685889800581 5.2847e-06 deg node 137.7235271845947 7.6122e-05 deg peri 353.4175693854426 7.8011e-05 deg M 154.9988840446983 1.6231e-05 deg tp 2458407.887770052461 (2018-Oct-16.38777005) 6.084e-05 TDB period 1376.399605042262 3.77 8.3005e-06 2.273e-08 d yr n .2615519495073863 1.5773e-09 deg/d Q 2.811008245414686 1.1301e-08 au   Orbit Determination Parameters    # obs. used (total)      507      data-arc span      10482 days (28.70 yr)      first obs. used      1991-11-29      last obs. used      2020-08-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5879      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:48:27   Additional Information  Earth MOID = 1.04678 au   Jupiter MOID = 2.23248 au   T_jup = 3.493  [ 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 16.74   n/a E2021B55   103472 (2000 AM212)          Discovered 2000-Jan-05 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-01 11:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin