+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1672 Gezelle (1935 BD) Classification: Main-belt Asteroid          SPK-ID: 2001672 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 48 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2775034928595826 1.7176e-08   a 3.17246660395638 1.0516e-08 au q 2.292096040378107 5.4663e-08 au i 1.067405911141102 5.4218e-07 deg node 181.2796042589404 1.5283e-05 deg peri 255.0296894813126 1.5996e-05 deg M 67.59630547041827 2.8963e-06 deg tp 2459008.961838561386 (2020-Jun-08.46183856) 1.5065e-05 TDB period 2063.925493368206 5.65 1.0263e-05 2.81e-08 d yr n .1744249010716472 8.6731e-10 deg/d Q 4.052837167534655 1.3435e-08 au   Orbit Determination Parameters    # obs. used (total)      3307      data-arc span      35528 days (97.27 yr)      first obs. used      1924-03-12      last obs. used      2021-06-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .42492      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 12:39:33   Additional Information  Earth MOID = 1.30752 au   Jupiter MOID = 1.24106 au   T_jup = 3.140  [ 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 11.56   n/a MPO614063   diameter diameter 26.205 km 0.202 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 40.72 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Brinsfield, J.W. (2009) Minor Planet Bull. 36, 64-66.] [Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] geometric albedo albedo 0.066   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   1672 Gezelle (1935 BD)          Discovered 1935-Jan-29 by Delporte, E. at Uccle Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1935 BD = 1929 AA = 1933 SE1 = 1939 VK = 1950 SX = 1978 NA8 = A924 EO  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jul-28 04:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin