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387 Aquitania (A894 EC)
Classification: Main-belt Asteroid          SPK-ID: 2000387
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 110 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2350637862890724 3.5215e-08  
a 2.741524663832366 7.3388e-09 au
q 2.097091496147054 9.6851e-08 au
i 18.11521753055244 4.1095e-06 deg
node 128.2194609627032 8.7421e-06 deg
peri 157.3196271655352 1.1068e-05 deg
M 188.0049276901061 8.0192e-06 deg
tp 2459792.636757940364
(2022-Aug-01.13675794)
3.9437e-05 TDB
period 1658.008157028618
4.54
6.6575e-06
1.823e-08
d
yr
n .217128002943707 8.7184e-10 deg/d
Q 3.385957831517679 9.0638e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2819  
   data-arc span      46071 days (126.14 yr)  
   first obs. used      1894-03-07  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:04:36  

Additional Information
 Earth MOID = 1.09089 au 
 Jupiter MOID = 1.89293 au 
 T_jup = 3.239 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.6   n/a MPO502156 IRAS observations used: 6
diameter diameter 100.51 km 2.9 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
rotation period rot_per 24.144 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Schober, H.J. (1979) Astron. Astrophys. Suppl. Ser. 38, 91-99.]
[Harris, A.W.; Young, J.W.; Dockweiler, T.; Gibson, J.; et al. (1992) Icarus 95, 115-147.]
[Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2003) Abstracts of Photometry and Polarimetry of Asteroids: Impact on Collaboration, Kharkiv, 9-10.]
[Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2007) Planet. Space Sci. 55, 986-997.]
[Marciniak, A.; Pilcher, F.; Oszkiewicz, D.; Santana-Ros, T.; et al. (2015) Planet. Space Sci. 118, 256-266.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Devogele, M.; Tanga, P.; Bendjoya, P.; Rivet, J.P.; et al. (2017) ArXiv:1707.07503.]
[Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.]
geometric albedo albedo 0.1900   0.011 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 6
B-V BV 0.881   0.021 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=7.56, mean=16.93, max.=23.25) deg.
U-B UB 0.449   0.030 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=7.56, mean=15.66, max.=22.65) deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices
SMASSII spectral type spec_B L   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)

387 Aquitania (A894 EC)          Discovered 1894-Mar-05 by Courty, F. at Bordeaux
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 A894 EC = 1945 NA = 1948 BG = 1953 EO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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