+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   114 Kassandra Classification: Main-belt Asteroid          SPK-ID: 2000114 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB Reference: JPL 93 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1354810565718579 3.476e-08   a 2.677218931109484 8.2443e-09 AU q 2.314506481648591 9.3686e-08 AU i 4.936412010304997 3.7442e-06 deg node 164.2289365837244 4.1669e-05 deg peri 352.0293104835306 4.3397e-05 deg M 62.25687191122574 1.2279e-05 deg tp 2456723.800067686653 (2014-Mar-07.30006769) 5.4261e-05 JED period 1600.015750467598 4.38 7.3907e-06 2.023e-08 d yr n .2249977851122974 1.0393e-09 deg/d Q 3.039931380570376 9.3613e-09 AU   Orbit Determination Parameters    # obs. used (total)      1506      data-arc span      40832 days (111.79 yr)      first obs. used      1902-09-03      last obs. used      2014-06-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-BIG16      condition code      0      fit RMS      .59048      data source      ORB      producer      Otto Matic      solution date      2014-Jul-14 11:53:38   Additional Information  Earth MOID = 1.32487 AU   T_jup = 3.360  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 8.26 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17 diameter diameter 99.65 km 1.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17 rotation period rot_per 10.7431 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List: [Gil Hutton, R.; Blain, A. (1988) Minor Planet Bul. 15, 39-40.] [Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; et al. (1998) Astron. Astrophys. Suppl. Ser. 128, 525-540.] [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.0884   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17 B-V BV .768 mag .010 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=.00, mean=3.22, max.=9.27) deg. U-B UB .269 mag .182 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=4; phase (min.=.00, mean=3.22, max.=9.27) deg. Tholen spectral type spec_T T   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices SMASSII spectral type spec_B Xk   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 114 Kassandra          Discovered 1871-Jul-23 by Peters, C. H. F. at Clinton Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2014-Aug-28 22:46 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin