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19 Fortuna (A852 QA)
Classification: Main-belt Asteroid          SPK-ID: 2000019
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 130 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1569747195890741 2.3374e-08  
a 2.44285707405104 3.2847e-09 au
q 2.059390269855693 5.7242e-08 au
i 1.572665328857384 2.6088e-06 deg
node 211.0689729068897 0.00010365 deg
peri 182.2627446891953 0.00010407 deg
M 300.3462315760647 1.088e-05 deg
tp 2459231.589864148323
(2021-Jan-17.08986415)
4.2389e-05 TDB
period 1394.586683982506
3.82
2.8128e-06
7.701e-09
d
yr
n .2581409991467521 5.2065e-10 deg/d
Q 2.826323878246388 3.8003e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3375  
   data-arc span      61221 days (167.61 yr)  
   first obs. used      1852-09-14  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 00:56:00  

Additional Information
 Earth MOID = 1.06556 au 
 Jupiter MOID = 2.59884 au 
 T_jup = 3.483 
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Orbital Elements at Epoch 2452638.5 (2002-Dec-30.0) TDB
Reference: JPL 130 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1587174369187372 2.3603e-08  
q 2.05514330792462 5.8055e-08 au
tp 2452262.127259232101
(2001-Dec-18.62725923)
3.7071e-05 TDB
node 211.4174025895626 0.00010358 deg
peri 182.2668617225706 0.00010399 deg
i 1.571939834335859 2.6135e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      3375  
   data-arc span      61221 days (167.61 yr)  
   first obs. used      1852-09-14  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 00:56:00  

Additional Information
 Jupiter MOID = 2.59884 au 
 T_jup = 3.483 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.570867379559047E-16 -1.368869051480157E-15 1.182173733641335E-13 -1.313753818917834E-15 2.60134708876179E-14 7.496729767734479E-17
q -1.368869051480157E-15 3.370383193718295E-15 -2.758169294782706E-13 3.206474942665245E-15 -6.042950111482535E-14 -2.033494510319281E-16
tp 1.182173733641335E-13 -2.758169294782706E-13 1.374260700104173E-9 -8.572332224204473E-12 3.525010501793683E-10 -1.415961371645798E-13
node -1.313753818917834E-15 3.206474942665245E-15 -8.572332224204473E-12 1.072786994805148E-8 -1.072549096630136E-8 3.449550789010626E-11
peri 2.60134708876179E-14 -6.042950111482535E-14 3.525010501793683E-10 -1.072549096630136E-8 1.081312815396051E-8 -3.451431077733932E-11
i 7.496729767734479E-17 -2.033494510319281E-16 -1.415961371645798E-13 3.449550789010626E-11 -3.451431077733932E-11 6.830441576882116E-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 (A852 QA)          Discovered 1852-Aug-22 by Hind, J. R. at London
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A852 QA = A902 UG 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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