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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 109 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588010253585641 2.3288e-08  
a 2.441588227298614 3.2278e-09 AU
q 2.053861513300195 5.7235e-08 AU
i 1.57357063756734 2.6891e-06 deg
node 211.1574520006994 0.00010351 deg
peri 182.2755643396233 0.00010382 deg
M 143.7874202188206 9.971e-06 deg
tp 2456443.922749203820
(2013-May-31.42274920)
3.8159e-05 JED
period 1393.500279660754
3.82
2.7633e-06
7.566e-09
d
yr
n .2583422517056412 5.1229e-10 deg/d
Q 2.829314941297033 3.7403e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      2527  
   data-arc span      59434 days (162.72 yr)  
   first obs. used      1852-09-14  
   last obs. used      2015-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55132  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 11:33:03  

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 LCDB (Rev. 2015-July); Warner et al., 2009 Published Reference List:
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Harris, A.W.; Young, J.W.; Bowell, E.; Tholen, D.J. (1999) Icarus 142, 173-201.]
[Lopez-Gonzalez, M.J.; Rodriguez, E. (2005) Planetary and Space Science 53, 1147-1165.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
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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