+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15155 Ahn (2000 FB37) Classification: Main-belt Asteroid          SPK-ID: 2015155 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06420789937438706 3.0174e-08   a 2.35726075038608 8.3613e-09 au q 2.205905989326098 7.1885e-08 au i 5.613180615412337 4.2752e-06 deg node 156.9266631004901 3.385e-05 deg peri 289.1094901212367 4.817e-05 deg M 306.0204912978957 3.5713e-05 deg tp 2459198.714897001593 (2020-Dec-15.21489700) 0.00013147 TDB period 1321.934279068226 3.62 7.0334e-06 1.926e-08 d yr n .2723282130589338 1.4489e-09 deg/d Q 2.508615511446062 8.8981e-09 au   Orbit Determination Parameters    # obs. used (total)      1459      data-arc span      18260 days (49.99 yr)      first obs. used      1969-11-04      last obs. used      2019-11-02      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52493      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 21:12:03   Additional Information  Earth MOID = 1.22978 au   Jupiter MOID = 2.59959 au   T_jup = 3.544  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.6   n/a MPO296259   diameter diameter 2.739 km 0.207 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.409   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   15155 Ahn           Discovered 2000 Mar. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Named in honor of Ryan J. Ahn for achievement as a finalist in the 2001 Discovery Young Scientist Challenge (DYSC), a middle school science competition. Ryan is a student at the Landisville Middle School, Landisville, Pennsylvania. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20011002/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  2000 FB37 = 1969 VC3 = 1996 DU3 = 1998 UV27  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-24 04:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin