+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16653 (1993 TP19) Classification: Main-belt Asteroid          SPK-ID: 2016653 [ 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 39 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09377257914016841 2.7607e-08   a 2.390357900277595 7.4937e-09 au q 2.166207874900487 6.6105e-08 au i 6.04043444629818 3.7681e-06 deg node 173.9364392666845 2.985e-05 deg peri 91.57232892633564 3.6459e-05 deg M 232.1033667306542 2.2052e-05 deg tp 2459680.067159665837 (2022-Apr-10.56715967) 8.3309e-05 TDB period 1349.872729770131 3.70 6.3477e-06 1.738e-08 d yr n .2666918088354183 1.2541e-09 deg/d Q 2.614507925654703 8.1964e-09 au   Orbit Determination Parameters    # obs. used (total)      2153      data-arc span      16071 days (44.00 yr)      first obs. used      1977-03-15      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48918      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:37:54   Additional Information  Earth MOID = 1.15914 au   Jupiter MOID = 2.44603 au   T_jup = 3.519  [ 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 14.31   n/a E2021B10   diameter diameter 3.803 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.161   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   16653 (1993 TP19)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1993 TP19 = 1977 EN3 = 1999 FA39  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-16 09:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin