+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17534 (1993 FB40) Classification: Main-belt Asteroid          SPK-ID: 2017534 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1676074887834469 4.5073e-08   a 2.971552480539893 1.4907e-08 au q 2.473498031488379 1.3865e-07 au i 1.69216127813995 3.4989e-06 deg node 83.52305577731522 0.00014256 deg peri 266.313627816052 0.00014291 deg M 352.2429285290601 1.1147e-05 deg tp 2459240.815200692633 (2021-Jan-26.31520069) 5.8071e-05 TDB period 1870.998907734608 5.12 1.4079e-05 3.855e-08 d yr n .1924105880082449 1.4478e-09 deg/d Q 3.469606929591407 1.7405e-08 au   Orbit Determination Parameters    # obs. used (total)      1519      data-arc span      11050 days (30.25 yr)      first obs. used      1990-10-13      last obs. used      2021-01-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54432      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:34:15   Additional Information  Earth MOID = 1.46637 au   Jupiter MOID = 1.95789 au   T_jup = 3.240  [ 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 14.2   n/a MPO473999   diameter diameter 8.911 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.045   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17534 (1993 FB40)          Discovered 1993-Mar-19 by UESAC at La Silla Reference: 20001013/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1993 FB40 = 1990 TU7 = 1997 AV24 = 1998 FY44 = 1999 LF28  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-10 14:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin