+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1406 Komppa (1936 RF) Classification: Main-belt Asteroid          SPK-ID: 2001406 [ 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 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09620657048908597 3.7201e-08   a 2.696036518717386 1.0698e-08 au q 2.436660091338251 1.0063e-07 au i 12.42663544644521 4.8308e-06 deg node 333.0450907742697 1.9405e-05 deg peri 86.00291912248375 3.2826e-05 deg M 284.5884884596459 2.5691e-05 deg tp 2459339.205483526694 (2021-May-04.70548353) 0.00011567 TDB period 1616.914600688795 4.43 9.624e-06 2.635e-08 d yr n .2226462670611314 1.3252e-09 deg/d Q 2.95541294609652 1.1727e-08 au   Orbit Determination Parameters    # obs. used (total)      2030      data-arc span      30077 days (82.35 yr)      first obs. used      1938-02-03      last obs. used      2020-06-09      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42415      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 15:31:03   Additional Information  Earth MOID = 1.48645 au   Jupiter MOID = 2.33336 au   T_jup = 3.329  [ 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 11.4   n/a MPO439076   diameter diameter 24.243 km 0.449 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 3.508 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Polishook, D. (2009) Minor Planet Bull. 36, 104-107.] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Durkee, R.I.; Klinglesmith III, D.A.; Curtis, W.; Briggs, J.W. (2012) Minor Planet Bull. 39, 25.] geometric albedo albedo 0.173   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   SMASSII spectral type spec_B Ld   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 1406 Komppa (1936 RF)          Discovered 1936-Sep-13 by Vaisala, Y. at Turku Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1936 RF = 1949 SW  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-11 17:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin