+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70638 (1999 TY232) Classification: Main-belt Asteroid          SPK-ID: 2070638 [ 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 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .01038993144274639 3.3718e-08   a 2.573374655145308 1.0223e-08 au q 2.546637468901848 8.6883e-08 au i 10.184543948 4.1983e-06 deg node 117.6665035649614 1.9799e-05 deg peri 250.8145094024736 0.00021697 deg M 67.42957718238438 0.00021395 deg tp 2458918.076460516206 (2020-Mar-09.57646052) 0.00089647 TDB period 1507.831999882794 4.13 8.9851e-06 2.46e-08 d yr n .2387533889902743 1.4227e-09 deg/d Q 2.600111841388769 1.0329e-08 au   Orbit Determination Parameters    # obs. used (total)      1421      data-arc span      9689 days (26.53 yr)      first obs. used      1994-07-11      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51714      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 06:41:39   Additional Information  Earth MOID = 1.5439 au   Jupiter MOID = 2.45948 au   T_jup = 3.406  [ 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 14.4   n/a MPO449445   diameter diameter 5.435 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.137   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70638 (1999 TY232)          Discovered 1999-Oct-07 by CSS at Catalina Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 TY232 = 1994 NT5 = 2000 AN185  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 20:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin