+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1683388172444933 4.5097e-08   a 2.973696687181102 1.6249e-08 au q 2.473108104017167 1.3879e-07 au i 1.692560432239651 3.5714e-06 deg node 83.53596259823145 0.00014937 deg peri 266.3125315005279 0.00014971 deg M 313.8147682658708 1.1817e-05 deg tp 2459240.794625125567 (2021-Jan-26.29462513) 6.2522e-05 TDB period 1873.024380243165 5.13 1.5352e-05 4.203e-08 d yr n .1922025168477856 1.5753e-09 deg/d Q 3.474285270345036 1.8984e-08 au   Orbit Determination Parameters    # obs. used (total)      1324      data-arc span      10840 days (29.68 yr)      first obs. used      1990-10-13      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56506      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 18:11:21   Additional Information  Earth MOID = 1.46774 au   Jupiter MOID = 1.9528 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 ] 2020-Aug-12 12:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin