+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   392013 (2009 AL9) Classification: Main-belt Asteroid          SPK-ID: 2392013 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2276035225504502 6.471e-08   a 2.615638345333253 2.7231e-08 au q 2.020309844217374 1.6591e-07 au i 15.16973125434051 7.3566e-06 deg node 96.94189044879981 2.9637e-05 deg peri 166.0547700219081 3.5487e-05 deg M 106.797159404352 2.2768e-05 deg tp 2458542.123682951251 (2019-Feb-27.62368295) 9.4836e-05 TDB period 1545.129805492049 4.23 2.4129e-05 6.606e-08 d yr n .2329901337223622 3.6385e-09 deg/d Q 3.210966846449133 3.3429e-08 au   Orbit Determination Parameters    # obs. used (total)      160      data-arc span      6697 days (18.34 yr)      first obs. used      2002-07-16      last obs. used      2020-11-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60555      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:12:05   Additional Information  Earth MOID = 1.00735 au   Jupiter MOID = 1.90916 au   T_jup = 3.322  [ 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 16.4   n/a MPO437604   diameter diameter 1.380 km 0.261 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.233   0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   392013 (2009 AL9)          Discovered 2009-Jan-02 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2014-04-17 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1907-Jan-03 08:24 00:05 Jupiter 1.99839346634146 1.99839064481313 1.99839628798884 3.71284930605798 3.5968801094317 2417578.850222638 4.55115832255819 806.234507393715 16.6854410565617 -80.5572268790463 1781155.73061145 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 01:12:06 2020-Dec-18 01:12 2071-Oct-17 16:11 00:02 Jupiter 1.98844887541509 1.98844743419966 1.98845031663663 3.06245627459644 2.92005059345541 2477767.174356897 2.39301720870467 333.513231499368 62.4113368414263 -80.8948067678516 2068015.7133051 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 01:12:06 2020-Dec-18 01:12 2131-Mar-02 04:28 00:05 Jupiter 1.97701397346088 1.9770114601722 1.97701648675956 3.14247865142143 3.00304870662138 2499451.686090686 4.97325325141698 355.284192788851 100.756211781258 -72.4783377344338 2108170.07943136 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 01:12:06 2020-Dec-18 01:12 2190-Jul-15 01:16 00:08 Jupiter 1.965159503658 1.96515598670005 1.96516302062233 3.21836305831808 3.08152905520324 2521136.552882677 7.52578270821287 322.344043557728 151.198191963004 -62.595654129163 2035559.4799179 T 14 CATAB v2.0f-lin.ifort 2020-Dec-18 01:12:06 2020-Dec-18 01:12 Alternate Designations  2009 AL9 = 2010 GN65  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-16 16:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin