+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   103390 (2000 AL125) Classification: Main-belt Asteroid          SPK-ID: 2103390 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1415753200077806 4.0259e-08   a 2.779099074357711 1.8665e-08 au q 2.385647233572191 1.122e-07 au i 12.28157614389895 4.9652e-06 deg node 296.4049740283353 2.3228e-05 deg peri 150.0272530250746 3.0796e-05 deg M 219.0981882315714 2.0586e-05 deg tp 2459862.821034500716 (2022-Oct-10.32103450) 9.9452e-05 TDB period 1692.210834109964 4.63 1.7047e-05 4.667e-08 d yr n .2127394487397581 2.1432e-09 deg/d Q 3.172550915143231 2.1307e-08 au   Orbit Determination Parameters    # obs. used (total)      624      data-arc span      7587 days (20.77 yr)      first obs. used      1998-08-24      last obs. used      2019-06-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54849      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 01:48:42   Additional Information  Earth MOID = 1.40993 au   Jupiter MOID = 2.02945 au   T_jup = 3.286  [ 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 14.9   n/a MPO436486   diameter diameter 3.752 km 0.769 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.181   0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   103390 (2000 AL125)          Discovered 2000-Jan-05 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  2000 AL125 = 1998 QZ87  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-09 01:01 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin