+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1281 Jeanne (1933 QJ) Classification: Main-belt Asteroid          SPK-ID: 2001281 [ 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 45 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2082011649872173 2.5232e-08   a 2.55638470784326 6.5285e-09 au q 2.024142433514786 6.2996e-08 au i 7.445016936438915 4.9332e-06 deg node 210.0983079679507 2.2219e-05 deg peri 72.64044708623766 2.5809e-05 deg M 113.7808776864323 1.2842e-05 deg tp 2458528.649388668814 (2019-Feb-14.14938867) 5.2696e-05 TDB period 1492.924149762314 4.09 5.7189e-06 1.566e-08 d yr n .2411375019000898 9.2372e-10 deg/d Q 3.088626982171733 7.8877e-09 au   Orbit Determination Parameters    # obs. used (total)      3062      data-arc span      42215 days (115.58 yr)      first obs. used      1904-07-07      last obs. used      2020-02-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44317      source      ORB      producer      Otto Matic      solution date      2020-Feb-22 15:50:19   Additional Information  Earth MOID = 1.02307 au   Jupiter MOID = 2.09926 au   T_jup = 3.395  [ 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 MPO435708   diameter diameter 25.716 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 15.3 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Behrend, R. (2002) 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.] [Ditteon, R. (2019) Minor Planet Bull. 46, 127-129.] geometric albedo albedo 0.058   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   1281 Jeanne (1933 QJ)          Discovered 1933-Aug-25 by Arend, S. at Uccle Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1933 QJ = 1929 RG = 1938 YL = A904 NA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-08 18:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin