+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14473 (1993 TL17) Classification: Main-belt Asteroid          SPK-ID: 2014473 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .167537917892306 3.8571e-08   a 2.711769197613056 1.0666e-08 au q 2.257445032440475 1.0397e-07 au i 9.651926213096869 4.4695e-06 deg node 183.4557862719376 1.8096e-05 deg peri 358.6514152999282 2.0383e-05 deg M 189.8071346293313 1.0643e-05 deg tp 2459771.610046278840 (2022-Jul-11.11004628) 5.0407e-05 TDB period 1631.088448130825 4.47 9.6233e-06 2.635e-08 d yr n .220711513475893 1.3022e-09 deg/d Q 3.166093362785636 1.2453e-08 au   Orbit Determination Parameters    # obs. used (total)      1765      data-arc span      10839 days (29.68 yr)      first obs. used      1991-03-15      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48736      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:56:43   Additional Information  Earth MOID = 1.26016 au   Jupiter MOID = 1.79269 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 13.9   n/a MPO347639   diameter diameter 5.271 km 0.191 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.160   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14473 (1993 TL17)          Discovered 1993-Oct-09 by Elst, E. W. at La Silla Reference: 20000418/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1993 TL17 = 1991 EX7 = 1997 RM4  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-21 21:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin