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19 Fortuna
Classification: Main-belt Asteroid          SPK-ID: 2000019
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 103 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588010218377052 2.3311e-08  
a 2.441588228807615 3.2517e-09 AU
q 2.053861523166053 5.7304e-08 AU
i 1.573570749595757 2.6924e-06 deg
node 211.1574596588117 0.00010601 deg
peri 182.2755510912415 0.0001063 deg
M 143.7874237731773 1.0029e-05 deg
tp 2456443.922734929514
(2013-May-31.42273493)
3.8397e-05 JED
period 1393.500280952614
3.82
2.7838e-06
7.622e-09
d
yr
n .2583422514661422 5.1608e-10 deg/d
Q 2.829314934449177 3.768e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2339  
   data-arc span      59069 days (161.72 yr)  
   first obs. used      1852-09-14  
   last obs. used      2014-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5541  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:08:07  

Additional Information
 Earth MOID = 1.0598 AU 
 T_jup = 3.483 
[ 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 7.13 mag n/a PDS3 (MPC 17257)  
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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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.]
[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.]
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.]
[De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.]
[Blanco, C.; Di Martino, M.; Dotto, E.; Gilmore, A.C.; et al. (1996) Planet. Space Sci. 44, 87-91.]
[Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.]
[Denchev, P. (1999) Abstracts of ACM 1999, 117.]
[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) Planetary and Space Science 53, 1147-1165.]
[Drummond, J.; Merline, W.J.; Conrad, A.; Christou, J.; et al. (2011) EPSC-DPS2011 #1426.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J. (2011) Database of Asteroid Models from Inversion Techniques (DAMIT). http://astro.troja.mff.cuni.cz/projects/aster oids3D/web.php]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
geometric albedo albedo 0.037   n/a EAR-A-5-DDR-ALBEDOS-V1.0:TRIAD TRIAD quality code 3
B-V BV .719 mag .014 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=38; phase (min.=1.00, mean=9.64, max.=28.27) deg.
U-B UB .324 mag .046 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #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          Discovered 1852-Aug-22 by Hind, J. R. at London
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A902 UG 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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