+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1407 Lindelof (1936 WC) Classification: Main-belt Asteroid          SPK-ID: 2001407 [ 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 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2830864292102747 3.5955e-08   a 2.763383491316286 8.4227e-09 au q 1.981107126220936 9.7885e-08 au i 5.819901655333969 3.6829e-06 deg node 268.3606187136859 3.8075e-05 deg peri 111.2403776811797 3.8582e-05 deg M 128.6677551634405 7.4487e-06 deg tp 2458600.809197313321 (2019-Apr-27.30919731) 3.339e-05 TDB period 1677.877170492106 4.59 7.6712e-06 2.1e-08 d yr n .2145568259292874 9.8095e-10 deg/d Q 3.545659856411635 1.0807e-08 au   Orbit Determination Parameters    # obs. used (total)      2895      data-arc span      42388 days (116.05 yr)      first obs. used      1905-01-01      last obs. used      2021-01-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42267      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:55:05   Additional Information  Earth MOID = .991464 au   Jupiter MOID = 1.98099 au   T_jup = 3.274  [ hide covariance matrix ] Orbital Elements at Epoch 2456550.5 (2013-Sep-15.0) TDB Reference: JPL 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .280825764987142 3.5823e-08   q 1.988986353890045 9.733e-08 au tp 2456914.513425112341 (2014-Sep-14.01342511) 3.099e-05 TDB node 269.0981924625515 3.8177e-05 deg peri 109.5535738066263 3.8695e-05 deg i 5.805712718467537 3.6798e-06 deg   Orbit Determination Parameters    # obs. used (total)      2895      data-arc span      42388 days (116.05 yr)      first obs. used      1905-01-01      last obs. used      2021-01-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42267      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 00:55:05   Additional Information  Jupiter MOID = 1.98099 au   T_jup = 3.274  Orbit Covariance (6×6)   e q tp node peri i e 1.283293886202665E-15 -3.48029960826931E-15 9.175771152052806E-14 -1.464958896981333E-15 -2.980024414606411E-14 -4.663967517080085E-16 q -3.48029960826931E-15 9.473050207033079E-15 -1.895816770672852E-13 3.298869794217854E-15 9.058410871654431E-14 1.264277974514296E-15 tp 9.175771152052806E-14 -1.895816770672852E-13 9.603564648372674E-10 -4.411138123135411E-12 2.102324736783076E-10 -1.758833848737498E-13 node -1.464958896981333E-15 3.298869794217854E-15 -4.411138123135411E-12 1.457478783097115E-9 -1.45034863262562E-9 9.796301508932593E-12 peri -2.980024414606411E-14 9.058410871654431E-14 2.102324736783076E-10 -1.45034863262562E-9 1.497300640642649E-9 -9.802781352124944E-12 i -4.663967517080085E-16 1.264277974514296E-15 -1.758833848737498E-13 9.796301508932593E-12 -9.802781352124944E-12 1.354105329645293E-11 [ 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 10.98   n/a E2021B10   diameter diameter 20.310 km 0.317 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 31.151 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] geometric albedo albedo 0.187   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   SMASSII spectral type spec_B X   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) 1407 Lindelof (1936 WC)          Discovered 1936-Nov-21 by Vaisala, Y. at Turku Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1936 WC = 1977 FL = A905 AB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-04 23:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin