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596 Scheila (1906 UA)
Classification: Main-belt Asteroid          SPK-ID: 2000596
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 61 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1644467446953373 3.8336e-08  
a 2.928166934515386 1.2728e-08 au
q 2.446639414209806 1.1308e-07 au
i 14.65633223812592 4.0907e-06 deg
node 70.6814885348159 1.306e-05 deg
peri 175.2975465260665 1.7143e-05 deg
M 263.127483904188 1.21e-05 deg
tp 2457892.981878039377
(2017-May-19.48187804)
6.356e-05 JED
period 1830.173131033608
5.01
1.1933e-05
3.267e-08
d
yr
n .1967027019988467 1.2825e-09 deg/d
Q 3.409694454820966 1.4821e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3130  
   data-arc span      40042 days (109.63 yr)  
   first obs. used      1906-03-27  
   last obs. used      2015-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .41217  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 15:29:55  

Additional Information
 Earth MOID = 1.43225 au 
 Jupiter MOID = 1.62315 au 
 T_jup = 3.209 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 8.90 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
diameter diameter 113.34 km 2.3 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
rotation period rot_per 15.8480 h n/a LCDB (Rev. 2015-December); 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 Bul. 33, 58-62.]
[Ishiguro, M.; Hanayama, H.; Hasegawa, S.; Sarugaku, Y.; et al. (2011) Astrophys. J. Let. 740, L11.]
[Warner, B.D. (2011) Minor Planet Bul. 38, 96-101.]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Husarik, M. (2012) Contr. Ast. Obs. Skalnaté Pleso 42, 15-21.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2015) Astron. Astrophys., in press.arXiv:1510.07422]
geometric albedo albedo 0.0379   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 21
B-V BV .714 mag .033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=2; phase (min.=5.96, mean=6.93, max.=7.91) deg.
U-B UB .177 mag .039 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #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 (1906 UA)          Discovered 1906-Feb-21 by Kopff, A. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1906 UA = 1949 WT 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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