+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 41 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2772993463700155 2.9273e-08   a 3.172216280131269 1.2087e-08 au q 2.292562779106546 9.5557e-08 au i 1.067171611441357 4.3605e-06 deg node 181.2932946935053 0.00017507 deg peri 255.0589028530628 0.00017523 deg M 358.5068215425113 8.0676e-06 deg tp 2459009.059567600081 (2020-Jun-08.55956760) 4.627e-05 TDB period 2063.681216786118 5.65 1.1795e-05 3.229e-08 d yr n .1744455476319387 9.9704e-10 deg/d Q 4.051869781155992 1.5439e-08 au   Orbit Determination Parameters    # obs. used (total)      2729      data-arc span      35313 days (96.68 yr)      first obs. used      1924-03-12      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44952      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:02:03   Additional Information  Earth MOID = 1.30814 au   Jupiter MOID = 1.24044 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 11.5   n/a MPO337259   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-Jan-25 21:26 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin