+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   88 Thisbe Classification: Main-belt Asteroid          SPK-ID: 2000088 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 135 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1644906163772299 2.9647e-08   a 2.768357388028101 4.3172e-09 AU q 2.3129885749189 8.2752e-08 AU i 5.214527428083601 3.5733e-06 deg node 276.68503800 2.5946e-05 deg peri 36.03199377919946 2.7701e-05 deg M 298.5383709009685 9.2797e-06 deg tp 2456687.732267816981 (2014-Jan-30.23226782) 4.3529e-05 JED period 1682.409300402723 4.61 3.9355e-06 1.077e-08 d yr n .2139788456434624 5.0054e-10 deg/d Q 3.223726201137302 5.0273e-09 AU   Orbit Determination Parameters    # obs. used (total)      1985      data-arc span      53600 days (146.75 yr)      first obs. used      1866-07-17      last obs. used      2013-04-17      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .61389      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 12:32:10   Additional Information  Earth MOID = 1.30109 AU   T_jup = 3.313  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 7.04 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5 magnitude slope G 0.14   n/a PDS3 (MPC 17257) Fit diameter diameter 232 km n/a Dunham occult. list: Millis et al. 1983 Yeomans E-mail 2001-Apr-04 rotation period rot_per 6.042 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Choloniewski, J. (1979) Acta Astron. 29, 105-107.] [Schober, H.J.; Scaltriti, F.; Zappala, V. (1979) Astron. Astrophys. Suppl. Ser. 36, 1-8.] [Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.] [Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.] [Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1988) Astron. Astrophys. Suppl. Ser. 73, 395-405.] [Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1988) Icarus 76, 19-77.] [Magnusson, P. (1990) Icarus 85, 229-240.] [Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1991) Icarus 89, 44-64.] [De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.] [Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.] [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.] [Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.0671   0.003 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 5 B-V BV .681 mag .008 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=9; phase (min.=2.94, mean=10.99, max.=19.67) deg. U-B UB .305 mag .013 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=2.94, mean=5.76, max.=14.70) deg. Tholen spectral type spec_T CF   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo SMASSII spectral type spec_B B   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) 88 Thisbe          Discovered 1866-Jun-15 by Peters, C. H. F. at Clinton Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  A903 PA = A906 BL  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-19 04:22 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin