+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   173237 (1999 BD32) Classification: Main-belt Asteroid          SPK-ID: 2173237 [ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1257994772288877 5.9993e-08   a 2.687758222034429 1.8267e-08 au q 2.349639642784853 1.656e-07 au i 3.199584804676111 5.9314e-06 deg node 327.8710444440696 0.0001082 deg peri 62.63993232707612 0.00011091 deg M 21.11415605525549 2.2523e-05 deg tp 2458906.103704349249 (2020-Feb-26.60370435) 0.00010056 TDB period 1609.473111088992 4.41 1.6408e-05 4.492e-08 d yr n .2236756846198064 2.2803e-09 deg/d Q 3.025876801284005 2.0566e-08 au   Orbit Determination Parameters    # obs. used (total)      344      data-arc span      9880 days (27.05 yr)      first obs. used      1993-10-24      last obs. used      2020-11-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55892      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 05:07:47   Additional Information  Earth MOID = 1.35696 au   Jupiter MOID = 2.41702 au   T_jup = 3.360  [ 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 16.5   n/a MPO407319   diameter diameter 2.969 km 0.648 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.050   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   173237 (1999 BD32)          Discovered 1999-Jan-19 by Spacewatch at Kitt Peak Reference: 20080122/Numbers.arc Last Updated: 2008-01-28 [ 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 1905-Jul-31 03:15 00:49 Amphi 0.043251468525019 0.0432482528819255 0.0432547208926965 1.61972794653808 1.61972786447834 2417057.635404469 48.9188569288724 2140.99704222195 59.9587908528755 85.963253520427 107312.590348093 T 16 CATAB v2.0f-lin.ifort 2020-Dec-18 05:07:48 2020-Dec-18 05:07 Alternate Designations  1999 BD32 = 2006 UV220  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 23:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin