+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   758 Mancunia (A912 KB) Classification: Main-belt Asteroid          SPK-ID: 2000758 [ 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 83 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1504914760109939 1.6966e-08   a 3.187488703247999 1.1813e-08 au q 2.707798823527839 5.7953e-08 au i 5.610602202860444 5.4499e-07 deg node 106.1885315181776 6.1306e-06 deg peri 314.5218916502155 7.9805e-06 deg M 178.3853466918398 9.0258e-06 deg tp 2458170.521677810595 (2018-Feb-21.02167781) 4.9269e-05 TDB period 2078.602322805854 5.69 1.1556e-05 3.164e-08 d yr n .1731933020810084 9.6283e-10 deg/d Q 3.667178582968159 1.3591e-08 au   Orbit Determination Parameters    # obs. used (total)      3489      data-arc span      38823 days (106.29 yr)      first obs. used      1914-11-21      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45376      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 11:24:05   Additional Information  Earth MOID = 1.72385 au   Jupiter MOID = 1.66691 au   T_jup = 3.173  [ 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 8.46   n/a E2021B10 IRAS observations used: 13 diameter diameter 88.985 km 0.635 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 12.7253 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Warner, B.D.; Behrend, R.; Poncy, R.; Coliac, J.F. (2008) Minor Planet Bull. 35, 25.] [Chang, C.-K.; Ip, W.-H.; Cheng, Y.-C.; Ngeow, C.-C.; et al. (2014) Astrophys. J. 788, A17.] [Garceran, A.C.; Aznar, A.; Mansego, E.A.; Rodriguez, P.B.; et al. (2016) Minor Planet Bull. 43, 92-97.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] geometric albedo albedo 0.121   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   B-V BV 0.745   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=8.23 deg. U-B UB 0.418   0.079 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=8.23 deg. Tholen spectral type spec_T X   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices 758 Mancunia (A912 KB)          Discovered 1912-May-18 by Wood, H. E. at Johannesburg (UO) and K. Van der Spuy. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A912 KB = 1938 AG = A914 WC  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 16:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin