+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   15549 (2000 FN) Classification: Main-belt Asteroid          SPK-ID: 2015549 [ 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 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2103032779816494 1.1548e-08   a 2.216777579283043 5.6134e-09 au q 1.750581987803594 2.8187e-08 au i 7.133660974472188 3.9144e-07 deg node 127.1624152362084 1.7546e-06 deg peri 175.2024202770573 3.3621e-06 deg M 17.99211242027427 3.784e-06 deg tp 2459140.249415754299 (2020-Oct-17.74941575) 1.2621e-05 TDB period 1205.539951162771 3.30 4.579e-06 1.254e-08 d yr n .2986213767969876 1.1343e-09 deg/d Q 2.682973170762493 6.7939e-09 au   Orbit Determination Parameters    # obs. used (total)      2745      data-arc span      25837 days (70.74 yr)      first obs. used      1950-03-21      last obs. used      2020-12-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45415      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 01:01:57   Additional Information  Earth MOID = .733369 au   Jupiter MOID = 2.55543 au   T_jup = 3.614  [ 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 13.84   n/a E2021B10   diameter diameter 4.483 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 55.09 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Ditteon, R.; Black, S.; Masner, Z.; Osborne, J.; Trent, L. (2018) Minor Planet Bull. 45, 338-340.] [Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.] [Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.350   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   15549 (2000 FN)          Discovered 2000-Mar-25 by Kobayashi, T. at Oizumi Reference: 20000621/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2000 FN = 1974 OF  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 18:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin