+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1047 Geisha (A924 WM) Classification: Main-belt Asteroid          SPK-ID: 2001047 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1929398155798519 3.5119e-08   a 2.24039712561416 4.6798e-09 au q 1.808135317372533 7.7962e-08 au i 5.666877380748505 3.3768e-06 deg node 78.2195750262137 3.3204e-05 deg peri 300.3148981018866 3.4237e-05 deg M 190.8778109394723 1.0083e-05 deg tp 2459575.918774401067 (2021-Dec-27.41877440) 3.5191e-05 TDB period 1224.858547155195 3.35 3.8378e-06 1.051e-08 d yr n .2939114894827006 9.209e-10 deg/d Q 2.672658933855786 5.5828e-09 au   Orbit Determination Parameters    # obs. used (total)      2973      data-arc span      34910 days (95.58 yr)      first obs. used      1924-11-17      last obs. used      2020-06-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .41533      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 15:25:11   Additional Information  Earth MOID = .81862 au   Jupiter MOID = 2.79608 au   T_jup = 3.604  [ 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 12.0   n/a MPO502163   diameter diameter 10.729 km 0.112 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 25.62 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.277   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.913   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=14.88 deg. U-B UB 0.541   0.031 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=14.88 deg. Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices 1047 Geisha (A924 WM)          Discovered 1924-Nov-17 by Reinmuth, K. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A924 WM = 1932 BP = 1941 YG = 1947 NC = 1950 JF = 1974 HU2 = A916 HB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-08 19:03 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin