+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19 Fortuna (A852 QA) Classification: Main-belt Asteroid          SPK-ID: 2000019 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 133 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1569747145378136 2.3216e-08   a 2.442857072259301 3.1781e-09 au q 2.059390280684718 5.6934e-08 au i 1.57266614314184 2.5903e-06 deg node 211.0689956743927 0.00010292 deg peri 182.2627181370776 0.00010334 deg M 300.3462376616853 1.0523e-05 deg tp 2459231.589840319287 (2021-Jan-17.08984032) 4.0982e-05 TDB period 1394.586682448195 3.82 2.7215e-06 7.451e-09 d yr n .2581409994307565 5.0375e-10 deg/d Q 2.826323863833884 3.677e-09 au   Orbit Determination Parameters    # obs. used (total)      3468      data-arc span      61422 days (168.16 yr)      first obs. used      1852-09-14      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50092      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:50:24   Additional Information  Earth MOID = 1.06556 au   Jupiter MOID = 2.59884 au   T_jup = 3.483  [ hide covariance matrix ] Orbital Elements at Epoch 2452706.5 (2003-Mar-08.0) TDB Reference: JPL 133 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1588640312847661 2.3428e-08   q 2.054436735805382 5.7695e-08 au tp 2452262.063834624257 (2001-Dec-18.56383462) 3.6252e-05 TDB node 211.4003979133696 0.00010283 deg peri 182.2322313195702 0.00010323 deg i 1.572260564236062 2.5951e-06 deg   Orbit Determination Parameters    # obs. used (total)      3468      data-arc span      61422 days (168.16 yr)      first obs. used      1852-09-14      last obs. used      2020-11-14      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50092      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:50:24   Additional Information  Jupiter MOID = 2.59884 au   T_jup = 3.483  Orbit Covariance (6×6)   e q tp node peri i e 5.488702673264115E-16 -1.350383902602035E-15 9.647696432658948E-14 -1.697554907162012E-15 2.158647192282452E-14 6.343313192477649E-17 q -1.350383902602035E-15 3.328740950712966E-15 -2.269394347420075E-13 4.202861944349618E-15 -5.061489277940866E-14 -1.666736765959856E-16 tp 9.647696432658948E-14 -2.269394347420075E-13 1.314197455436357E-9 -8.324200305374186E-12 3.390002922265214E-10 -1.312557472425768E-13 node -1.697554907162012E-15 4.202861944349618E-15 -8.324200305374186E-12 1.0573863890022E-8 -1.057145672724127E-8 3.100412452692974E-11 peri 2.158647192282452E-14 -5.061489277940866E-14 3.390002922265214E-10 -1.057145672724127E-8 1.065614767955033E-8 -3.102066744950125E-11 i 6.343313192477649E-17 -1.666736765959856E-16 -1.312557472425768E-13 3.100412452692974E-11 -3.102066744950125E-11 6.734781355137652E-12 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 7.3   n/a MPO492748   magnitude slope G 0.10   n/a PDS3 (MPC 17257) Fit diameter diameter 200 km n/a J.G. Williams 9-90   rotation period rot_per 7.4432 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Yang, X.-y.; Zhang, Y.-y.; Li, X.-q. (1965) Acta Astron. Sin. 13, 66-74.] [Van Houten-Groeneveld, I.; van Houten, C.J.; Zappala, V. (1979) Astron. Astrophys. Suppl. Ser. 35, 223-232.] [Lupishko, D.F.; Tupieva, F.A.; Velichko, F.P.; Kiselev, N.N.; Chernova, G.P. (1981) Astron. Vestn. 15, 25-31; Solar System Res. 15, 19-24.] [Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R.; Greenberg, R.; et al. (1987) Icarus 70, 191-245.] [Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1988) Icarus 76, 19-77.] [Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1988) Astron. Astrophys. Suppl. Ser. 73, 395-405.] [Magnusson, P. (1990) Icarus 85, 229-240.] [Drummond, J.D.; Weidenschilling, S.J.; Chapman, C.R.; Davis, D.R. (1991) Icarus 89, 44-64.] [Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.] [De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.] [Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.] [Blanco, C.; Di Martino, M.; Dotto, E.; Gilmore, A.C.; et al. (1996) Planet. Space Sci. 44, 87-91.] [Denchev, P. (1999) Abstracts of ACM 1999, 117.] [Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.] [Denchev, P. (2000) Planet. Space Sci. 48, 987-992.] [Torppa, J.; Kaasalainen, M.; Michalowski, T.; Kwiatkowski, T.; et al. (2003) Icarus 164, 346-383.] [Lopez-Gonzalez, M.J.; Rodriguez, E. (2005) Planet. Space Sci. 53, 1147-1165.] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Drummond, J.; Merline, W.J.; Conrad, A.; Christou, J.; et al. (2011) EPSC-DPS2011 #1426.] [Durech, J. (2011) Database of Asteroid Models from Inversion Techniques (DAMIT). http://astro.troja.mff.cuni.cz/projects/asteroids3D/web.php] [Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] [Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.] geometric albedo albedo 0.037   n/a EAR-A-5-DDR-ALBEDOS-V1.0:TRIAD TRIAD quality code 3 B-V BV 0.719   0.014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=38; phase (min.=1.00, mean=9.64, max.=28.27) deg. U-B UB 0.324   0.046 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=30; phase (min.=1.00, mean=8.23, max.=22.69) deg. Tholen spectral type spec_T G   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo SMASSII spectral type spec_B Ch   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) 19 Fortuna (A852 QA)          Discovered 1852-Aug-22 by Hind, J. R. at London Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  A852 QA = A902 UG  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-21 22:22 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin