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JPL Small-Body Database Browser
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19 Fortuna
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 129 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569747199076325 2.3393e-08  
a 2.44285707411492 3.2903e-09 au
q 2.059390269131352 5.7283e-08 au
i 1.572665344394531 2.611e-06 deg
node 211.0689717063864 0.00010366 deg
peri 182.2627459002756 0.00010408 deg
M 300.3462314993554 1.0892e-05 deg
tp 2459231.589864454548
(2021-Jan-17.08986445)		 4.2436e-05 TDB
period 1394.586684037208
3.82		 2.8176e-06
7.714e-09		 d
yr
n .2581409991366267 5.2154e-10 deg/d
Q 2.826323879098489 3.8068e-09 au
   Orbit Determination Parameters
   # obs. used (total)      3350  
   data-arc span      61004 days (167.02 yr)  
   first obs. used      1852-09-14  
   last obs. used      2019-09-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4969  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:14:12  

Additional Information
 Earth MOID = 1.06556 au 
 Jupiter MOID = 2.59884 au 
 T_jup = 3.483 
[ hide covariance matrix ]
Orbital Elements at Epoch 2452623.5 (2002-Dec-15.0) TDB
Reference: JPL 129 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1586872007340717 2.3624e-08  
q 2.055270889490475 5.8098e-08 au
tp 2452262.135961308049
(2001-Dec-18.63596131)		 3.7101e-05 TDB
node 211.4221336322717 0.00010359 deg
peri 182.2707841063426 0.000104 deg
i 1.571879370956475 2.6157e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      3350  
   data-arc span      61004 days (167.02 yr)  
   first obs. used      1852-09-14  
   last obs. used      2019-09-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4969  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:14:12  

Additional Information
 Jupiter MOID = 2.59884 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.580847636710976E-16 -1.371109509948445E-15 1.196405551103516E-13 -1.292081866846102E-15 2.62933898236632E-14 7.636801942565687E-17
q -1.371109509948445E-15 3.375387898094388E-15 -2.791674513230455E-13 3.169607580446888E-15 -6.109761567454265E-14 -2.082427266935432E-16
tp 1.196405551103516E-13 -2.791674513230455E-13 1.376487991137142E-9 -8.569148546569377E-12 3.529563716323121E-10 -1.416198649569925E-13
node -1.292081866846102E-15 3.169607580446888E-15 -8.569148546569377E-12 1.073045909313149E-8 -1.072808097979783E-8 3.462022768322519E-11
peri 2.62933898236632E-14 -6.109761567454265E-14 3.529563716323121E-10 -1.072808097979783E-8 1.08158139297349E-8 -3.463919827794949E-11
i 7.636801942565687E-17 -2.082427266935432E-16 -1.416198649569925E-13 3.462022768322519E-11 -3.463919827794949E-11 6.842069287716898E-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. 2019-August); 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          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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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