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596 Scheila (A906 DL)
Classification: Main-belt Asteroid          SPK-ID: 2000596
[ 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 82 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630566431239895 3.7689e-08  
a 2.929436795208296 1.0646e-08 au
q 2.451772665137733 1.1009e-07 au
i 14.65941740330143 4.133e-06 deg
node 70.60398156630016 1.256e-05 deg
peri 175.3957258277061 1.652e-05 deg
M 217.6804642304862 1.2417e-05 deg
tp 2459724.496793707436
(2022-May-24.99679371)		 6.5869e-05 TDB
period 1831.363799252276
5.01		 9.9833e-06
2.733e-08		 d
yr
n .1965748149804991 1.0716e-09 deg/d
Q 3.407100925278858 1.2382e-08 au
   Orbit Determination Parameters
   # obs. used (total)      4722  
   data-arc span      41905 days (114.73 yr)  
   first obs. used      1906-02-22  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34829  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 01:54:46  

Additional Information
 Earth MOID = 1.43843 au 
 Jupiter MOID = 1.63093 au 
 T_jup = 3.209 
[ 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 8.90   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
diameter diameter 159.726 km 1.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 15.8480 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D. (2006) Minor Planet Bull. 33, 58-62.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Ishiguro, M.; Hanayama, H.; Hasegawa, S.; Sarugaku, Y.; et al. (2011) Astrophys. J. Letters 740, L11.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 96-101.]
[Husarik, M. (2012) Contr. Ast. Obs. Skalnat]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Shevchenko, V.G.; Belksaya, I.N.; Muinon, K.; Penttila, A.; et al. (2016) Plan. Space Sci. 123, 101-116.]
[Warner, B.D. (2017) Minor Planet Bull. 44, 289-294.]
[Kokhirova, G.I.; Ivanova, O.V.; Rakhmatullaeva, F.Dzh.; et al. (2018) Solar System Research 52, 495-504.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.040   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.714   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.96, mean=6.93, max.=7.91) deg.
U-B UB 0.177   0.039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.96, mean=6.93, max.=7.91) deg.
Tholen spectral type spec_T PCD   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B T   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)

596 Scheila (A906 DL)          Discovered 1906-Feb-21 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A906 DL = 1949 WT 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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