+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   103471 (2000 AF212) Classification: Main-belt Asteroid          SPK-ID: 2103471 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1676792924855905 5.6583e-08   a 3.137663643162726 2.459e-08 au q 2.61154242341944 1.7693e-07 au i 9.959649880346454 7.1848e-06 deg node 320.6158612912548 3.8104e-05 deg peri 91.38330977409984 4.7902e-05 deg M 347.4013151714333 2.4798e-05 deg tp 2459271.544541530085 (2021-Feb-26.04454153) 0.00013945 TDB period 2030.055938286387 5.56 2.3864e-05 6.534e-08 d yr n .1773350148685477 2.0847e-09 deg/d Q 3.663784862906013 2.8713e-08 au   Orbit Determination Parameters    # obs. used (total)      452      data-arc span      8093 days (22.16 yr)      first obs. used      1998-11-14      last obs. used      2021-01-10      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51705      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:34:43   Additional Information  Earth MOID = 1.64554 au   Jupiter MOID = 1.83024 au   T_jup = 3.166  [ show covariance matrix ] [ 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 15.49   n/a E2021B55   diameter diameter 2.607 km 0.706 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.197   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   103471 (2000 AF212)          Discovered 2000-Jan-05 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  2000 AF212 = 2003 SX42  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 18:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin