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394 Arduina (A894 WB)
Classification: Main-belt Asteroid          SPK-ID: 2000394
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2272603512781863 3.7782e-08  
a 2.762964066575825 9.2243e-09 au
q 2.135051882236797 1.0281e-07 au
i 6.219264826836929 3.7174e-06 deg
node 66.89121301470153 3.7951e-05 deg
peri 271.2179043578273 3.9052e-05 deg
M 214.0293409858297 1.2281e-05 deg
tp 2459880.680770900399
(2022-Oct-28.18077090)
5.8781e-05 TDB
period 1677.495184154599
4.59
8.4006e-06
2.3e-08
d
yr
n .2146056831641087 1.0747e-09 deg/d
Q 3.390876250914853 1.1321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3323  
   data-arc span      46068 days (126.13 yr)  
   first obs. used      1894-12-02  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4268  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 00:46:11  

Additional Information
 Earth MOID = 1.13536 au 
 Jupiter MOID = 2.04197 au 
 T_jup = 3.294 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.77   n/a E2021B10 IRAS observations used: 4
diameter diameter 29.970 km 0.269 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 16.53 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Gil-Hutton, R. (1992) Rev. Mexicana Astron. Astrof. 24, 43-44.]
[Lagerkvist, C.-I.; Magnusson, P.; Debehogne, H.; Hoffmann, M.; et al. (1992) Astron. Astrophys. Suppl. Ser. 95, 461-470.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Kaasalainen, M.; Warner, B.D.; Fauerbach, M.; et al. (2009) Astron. Astrophys. 493, 291-297.]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.294   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.826   0.029 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=4.23, mean=12.50, max.=18.40) deg.
U-B UB 0.411   0.044 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=3; phase (min.=4.23, mean=12.50, max.=18.40) 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 S   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)

394 Arduina (A894 WB)          Discovered 1894-Nov-19 by Borrelly, A. at Marseille
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A894 WB = A906 HA = A912 TB = A916 LB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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