+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120022 (2003 AA41) Classification: Main-belt Asteroid          SPK-ID: 2120022 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1197977676855797 4.2497e-08   a 2.259785707964634 6.3798e-09 au q 1.989068424702693 9.5939e-08 au i 6.210306307972545 3.5585e-06 deg node 262.48957596535 4.1016e-05 deg peri 234.7860384744696 4.4652e-05 deg M 90.27012324220118 1.559e-05 deg tp 2458889.370745825115 (2020-Feb-09.87074583) 5.3793e-05 TDB period 1240.792938793682 3.40 5.2545e-06 1.439e-08 d yr n .2901370476447081 1.2287e-09 deg/d Q 2.530502991226574 7.1441e-09 au   Orbit Determination Parameters    # obs. used (total)      830      data-arc span      7327 days (20.06 yr)      first obs. used      2000-04-25      last obs. used      2020-05-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51827      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 18:00:05   Additional Information  Earth MOID = 1.01043 au   Jupiter MOID = 2.52408 au   T_jup = 3.603  [ 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 16.07   n/a E2021B55   diameter diameter 1.597 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.332   0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   120022 (2003 AA41)          Discovered 2003-Jan-07 by LINEAR at Socorro Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] Alternate Designations  2003 AA41 = 2000 HM69  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-03 19:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin