+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101564 (1999 AV17) Classification: Main-belt Asteroid          SPK-ID: 2101564 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08720836178518934 3.9025e-08   a 2.721982474382506 1.4677e-08 au q 2.484602841983612 1.0724e-07 au i 3.891435850956463 4.4113e-06 deg node 304.1652233368287 6.0872e-05 deg peri 350.201366126711 6.6518e-05 deg M 111.1345539735294 2.5415e-05 deg tp 2458494.124104843429 (2019-Jan-10.62410484) 0.00011587 TDB period 1640.311817868865 4.49 1.3267e-05 3.632e-08 d yr n .2194704665773372 1.775e-09 deg/d Q 2.959362106781401 1.5956e-08 au   Orbit Determination Parameters    # obs. used (total)      804      data-arc span      8124 days (22.24 yr)      first obs. used      1997-11-06      last obs. used      2020-02-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52514      source      ORB      producer      Otto Matic      solution date      2020-Feb-24 01:22:17   Additional Information  Earth MOID = 1.46867 au   Jupiter MOID = 2.19368 au   T_jup = 3.349  [ 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 15.4   n/a MPO449615   diameter diameter 4.095 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.080   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101564 (1999 AV17)          Discovered 1999-Jan-11 by Spacewatch at Kitt Peak Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 AV17 = 2000 JD78  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-28 21:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin