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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 80 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .163056639559184 3.8101e-08  
a 2.92943679420823 1.0772e-08 au
q 2.451772674743607 1.1111e-07 au
i 14.65941734870612 4.1762e-06 deg
node 70.60398169436573 1.2619e-05 deg
peri 175.3957257311285 1.6565e-05 deg
M 217.6804647369927 1.2443e-05 deg
tp 2459724.496790760034
(2022-May-24.99679076)
6.6033e-05 TDB
period 1831.363798314476
5.01
1.0101e-05
2.766e-08
d
yr
n .1965748150811606 1.0842e-09 deg/d
Q 3.407100913672852 1.2528e-08 au
  Orbit Determination Parameters
   # obs. used (total)      4672  
   data-arc span      41889 days (114.69 yr)  
   first obs. used      1906-02-22  
   last obs. used      2020-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .34997  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:27:53  

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. 2019-August); 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.]
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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1929-Jun-29 17:25 00:01 Jupiter 1.62099662936421 1.62099629284498 1.6209969658853 3.51742013382679 3.36558769236079 2425792.225584742 1.23693926507473 189.519132804793 13.8503165479645 -87.4658325155816 3133701.52954307 T 80 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:04 2020-Nov-13 04:28
1964-Mar-11 12:49 < 00:01 Jupiter 1.80118348174016 1.80118284684664 1.80118411663747 3.11103166272505 2.95601086917474 2438466.034340914 0.819361947350756 286.893280793397 26.0086972202794 -85.6516905942335 3450847.28587969 T 80 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:04 2020-Nov-13 04:28
2025-Feb-04 20:48 < 00:01 Jupiter 1.73592225383917 1.73592187056581 1.73592263711391 3.58818287307299 3.44951884106394 2460711.366330578 0.268846384092574 107.986793776709 7.2728900583284 -81.0273614341135 3383994.35928871 T 80 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:04 2020-Nov-13 04:28
2059-Nov-03 07:13 < 00:01 Jupiter 1.62900310038567 1.62900271983412 1.62900348093744 3.5115933617396 3.36026196798669 2473400.800581183 0.799124147021987 138.257218338313 17.4009098993724 -86.8968341328764 3426868.5377413 T 80 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:04 2020-Nov-13 04:28
2094-Jul-06 18:36 00:02 Jupiter 1.86995684231041 1.86995570939646 1.86995797527367 3.13415807041736 2.98613788503884 2486065.274794590 1.61715230519434 600.098605179787 29.2748325868386 -84.8935704733118 3324508.63165842 T 80 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:04 2020-Nov-13 04:28
2155-Jun-09 13:04 00:02 Jupiter 1.68823145146013 1.68823041718272 1.68823248577084 3.57237349454648 3.42905362930275 2508317.044232722 2.2771914477335 396.362532251119 6.53507727181978 -82.4613476926203 3180616.31174893 T 80 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:04 2020-Nov-13 04:28
2190-Mar-10 00:20 00:03 Jupiter 1.6488646464595 1.64886365081827 1.64886564210457 3.51636115813077 3.36710482290444 2521009.514034034 2.85695793560735 213.984358010345 42.480800990509 81.7392201366775 3542477.14793022 T 80 CATAB v2.0f-lin.ifort 2020-Nov-13 04:28:04 2020-Nov-13 04:28

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