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106 Dione (A868 TA)
Classification: Main-belt Asteroid          SPK-ID: 2000106
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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 123 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593612723680759 1.6727e-08  
a 3.179849971275433 9.6589e-09 au
q 2.67310503391339 5.341e-08 au
i 4.576084678940544 5.3135e-07 deg
node 62.00649179633334 4.6313e-06 deg
peri 331.1701654342147 9.8878e-06 deg
M 327.8678973574577 7.0227e-06 deg
tp 2459385.360880252773
(2021-Jun-19.86088025)
4.0466e-05 TDB
period 2071.134828347255
5.67
9.4367e-06
2.584e-08
d
yr
n .1738177520230667 7.9197e-10 deg/d
Q 3.686594908637476 1.1198e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3117  
   data-arc span      54732 days (149.85 yr)  
   first obs. used      1871-03-16  
   last obs. used      2021-01-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46463  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 10:18:07  

Additional Information
 Earth MOID = 1.67956 au 
 Jupiter MOID = 1.74847 au 
 T_jup = 3.175 
[ 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 7.62   n/a E2021B10 IRAS observations used: 17
diameter diameter 207.869 km 2.158 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 16.210 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Pray, D. (2005) Minor Planet Bull. 32, 48-51.]
[Pilcher, F. (2017) Minor Planet Bull. 44, 249-251.]
geometric albedo albedo 0.044   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.743   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=4.26, mean=11.70, max.=19.19) deg.
U-B UB 0.464   0.022 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=4.26, mean=11.70, max.=19.19) deg.
Tholen spectral type spec_T G   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B Cgh   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)

106 Dione (A868 TA)          Discovered 1868-Oct-10 by Watson, J. C. at Ann Arbor
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
1900-Dec-08 16:48 00:02 Jupiter 1.85792036177153 1.85791991903402 1.85792080450916 2.5542728348521 2.36907436676851 2415362.199868333 1.55973913031477 38.6139652431429 4.18697270524076 79.3995994944993 5613477.41741748 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
1911-Sep-19 01:47 00:01 Jupiter 1.74802028222779 1.74802004205694 1.74802052239853 2.01877257757866 1.76247571809652 2419298.574236321 1.32249628956585 20.9685526688025 4.35360739000029 -81.3515241244378 9015646.48598098 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
1922-Jul-09 08:08 00:01 Jupiter 1.78371188558873 1.78371164741679 1.78371212376138 1.98306554534112 1.7270838920968 2423244.839068940 1.13091518250451 70.3346525385557 4.79720007028989 88.7623602590413 8278479.54282133 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
1933-Apr-21 16:03 < 00:01 Jupiter 1.93912377195339 1.93912347960883 1.93912406429829 2.4749314610742 2.29165269480024 2427184.168693181 0.975129064341491 50.6892061612271 2.66637295651125 84.5189867363882 12482293.7411378 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
2019-Jul-30 02:54 < 00:01 Jupiter 1.82439870202643 1.82439840574392 1.82439899830893 2.40588553802357 2.20448076362986 2458694.620915879 0.168913809287725 9.99135101617665 1.81071987461788 70.7814549544834 7746133.29593674 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
2030-May-10 10:58 < 00:01 Jupiter 1.73515296912197 1.73515274159204 1.73515319665191 1.97633924679369 1.71160978928313 2462631.957132950 0.312433933718954 21.9959614612861 4.73034514221398 -78.3433815889812 9632108.14360937 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
2041-Feb-27 17:16 < 00:01 Jupiter 1.79712295378727 1.79712277167282 1.79712313590193 2.04177581881903 1.79616415987473 2466578.219117560 0.495777109817304 38.0373256146012 3.8252594441667 84.8146084065065 9207474.1350333 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
2051-Dec-10 22:56 < 00:01 Jupiter 1.972746406519 1.97274604849628 1.97274676454194 2.62837173582999 2.45959626988812 2470516.455892393 0.693624971905886 41.6742914607657 2.35490309018145 76.7137084196011 13571232.2972597 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
2127-Jun-23 05:29 00:02 Jupiter 1.97015339280254 1.97015273734715 1.97015404825804 3.27040028389559 3.13618616121951 2498103.728808477 1.6736387073035 44.8267869844059 7.61099315372298 64.0646825745817 5005502.43143146 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
2138-Mar-19 10:39 00:02 Jupiter 1.79176977375682 1.79176922554691 1.79177032196693 2.26492328352126 2.04558509694803 2502025.943734197 1.80724901010001 53.0351520259125 1.47637581797188 89.0303571560307 5634177.62680688 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
2148-Dec-29 14:12 00:02 Jupiter 1.72633494798085 1.72633474197623 1.72633515398547 1.94535433051099 1.6742484265491 2505964.091706955 1.915287907988 21.9705472063931 7.81046812229523 -71.9995781189753 9957286.7167318 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19
2159-Oct-19 04:31 00:02 Jupiter 1.81602551808242 1.81602489805908 1.81602613810937 2.11730229518485 1.8841809737667 2509909.688089900 2.12215483091823 140.550582823176 2.59782022590393 85.4387187581807 10365852.5857206 T 123 CATAB v2.0f-lin.ifort 2021-Apr-12 10:19:03 2021-Apr-12 10:19

Alternate Designations
 A868 TA = A902 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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