+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   16615 (1993 FW40) Classification: Outer Main-belt Asteroid          SPK-ID: 2016615 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1468920514044361 3.6439e-08   a 3.23983860293369 2.1197e-08 au q 2.763932064329478 1.1598e-07 au i 2.160332353729826 4.1504e-06 deg node 89.23082028769392 0.00011435 deg peri 210.7613088448724 0.00011548 deg M 185.9704102927628 1.8846e-05 deg tp 2460230.184288395425 (2023-Oct-12.68428840) 0.00011636 TDB period 2130.0190642634 5.83 2.0904e-05 5.723e-08 d yr n .16901257178395 1.6587e-09 deg/d Q 3.715745141537902 2.4311e-08 au   Orbit Determination Parameters    # obs. used (total)      1199      data-arc span      10220 days (27.98 yr)      first obs. used      1993-03-19      last obs. used      2021-03-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .538      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:36:48   Additional Information  Earth MOID = 1.7466 au   Jupiter MOID = 1.50256 au   T_jup = 3.166  [ 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 14.17   n/a E2021B10   diameter diameter 6.967 km 0.362 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.110   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   16615 (1993 FW40)          Discovered 1993-Mar-19 by UESAC at La Silla Reference: 20000913/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1993 FW40 = 1994 NE9 = 1999 JM11  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-16 09:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin