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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 87 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1629188420975467 1.767e-08  
a 2.929533897824381 9.113e-09 au
q 2.45225762730532 5.6644e-08 au
i 14.65775757219988 6.2043e-07 deg
node 70.59882537644694 1.0083e-06 deg
peri 175.418734495765 5.198e-06 deg
M 256.9591419583692 8.7056e-06 deg
tp 2459724.707444212065
(2022-May-25.20744421)
4.6123e-05 TDB
period 1831.45485686948
5.01
8.5458e-06
2.34e-08
d
yr
n .1965650415295252 9.172e-10 deg/d
Q 3.406810168343442 1.0598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      5060  
   data-arc span      42033 days (115.08 yr)  
   first obs. used      1906-02-22  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .34362  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:38:30  

Additional Information
 Earth MOID = 1.43739 au 
 Jupiter MOID = 1.63018 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 8.93   n/a E2021B10 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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