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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 122 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1593612722811655 1.6727e-08  
a 3.179849975753331 9.6591e-09 au
q 2.673105037954047 5.341e-08 au
i 4.57608463224905 5.3135e-07 deg
node 62.0064918452162 4.6313e-06 deg
peri 331.1701651094687 9.8878e-06 deg
M 327.8678972281598 7.0227e-06 deg
tp 2459385.360881387128
(2021-Jun-19.86088139)
4.0466e-05 TDB
period 2071.134832722144
5.67
9.4369e-06
2.584e-08
d
yr
n .1738177516559088 7.9198e-10 deg/d
Q 3.686594913552614 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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46464  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 10:36:50  

Additional Information
 Earth MOID = 1.67956 au 
 Jupiter MOID = 1.74847 au 
 T_jup = 3.175 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457311.5 (2015-Oct-16.0) TDB
Reference: JPL 122 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1667814663532523 1.7057e-08  
q 2.645837844646864 5.4906e-08 au
tp 2457304.920734043310
(2015-Oct-09.42073404)
3.6035e-05 TDB
node 62.16281454155063 4.6061e-06 deg
peri 329.7474631922548 9.2887e-06 deg
i 4.59688856203326 5.3401e-07 deg
  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.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46464  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 10:36:50  

Additional Information
 Jupiter MOID = 1.74847 au 
 T_jup = 3.175 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.909419328989041E-16 -9.27277981706591E-16 3.473938563574707E-13 9.156608252760981E-15 7.742431629146E-14 -4.303413703148147E-16
q -9.27277981706591E-16 3.014702209545028E-15 -1.144607861751264E-12 -3.075086614324761E-14 -2.552430918119623E-13 1.432643721238037E-15
tp 3.473938563574707E-13 -1.144607861751264E-12 1.298536513196492E-9 5.753040201294038E-12 2.943436601345352E-10 -3.050862257482962E-12
node 9.156608252760981E-15 -3.075086614324761E-14 5.753040201294038E-12 2.121591287634828E-11 -1.846483715417543E-11 -1.12814264798995E-12
peri 7.742431629146E-14 -2.552430918119623E-13 2.943436601345352E-10 -1.846483715417543E-11 8.627982143493847E-11 4.212242429432996E-13
i -4.303413703148147E-16 1.432643721238037E-15 -3.050862257482962E-12 -1.12814264798995E-12 4.212242429432996E-13 2.851698861838013E-13

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 1.85792036350901 1.8579199208018 1.85792080621632 2.55427269361601 2.36907421360841 2415362.199873124 1.55963145245399 38.6111605222447 4.18697898705597 79.3998846007642 5613477.98380911 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
1911-Sep-19 01:47 00:01 Jupiter 1.74802028264141 1.74802004247325 1.74802052280957 2.01877265246894 1.76247580242349 2419298.574266366 1.32242320791073 20.9683778529084 4.35357090450345 -81.3518295100366 9015734.01552542 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
1922-Jul-09 08:08 00:01 Jupiter 1.7837118821805 1.78371164401161 1.78371212035011 1.9830657646634 1.72708414188189 2423244.839065532 1.13086936290539 70.3320409618273 4.7971969528754 88.7623821854752 8278487.63681156 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
1933-Apr-21 16:03 < 00:01 Jupiter 1.93912378598059 1.93912349364253 1.93912407831909 2.47493173215066 2.29165298788233 2427184.168675302 0.975103184325691 50.6877617420934 2.66635812984686 84.5189247108592 12482301.1560135 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
2019-Jul-30 02:54 < 00:01 Jupiter 1.82439871243581 1.82439841615289 1.82439900871873 2.40588543103501 2.20448064690485 2458694.620926304 0.168915096068525 9.99137400927039 1.810732855088 70.7815386071037 7746122.19148805 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
2030-May-10 10:58 < 00:01 Jupiter 1.73515295657596 1.73515272904584 1.73515318410609 1.97633928205195 1.71160982635699 2462631.957177122 0.312438522760629 21.9959893665169 4.73035555812364 -78.3433543865549 9632108.94535013 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
2041-Feb-27 17:16 < 00:01 Jupiter 1.79712291043159 1.79712272831592 1.79712309254746 2.04177590224357 1.79616424692681 2466578.219189888 0.495784122706661 38.0377198203979 3.82525853171207 84.8146027568586 9207475.28652354 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
2051-Dec-10 22:57 < 00:01 Jupiter 1.97274634551663 1.97274598749191 1.97274670354158 2.62837165643946 2.45959617868749 2470516.455964514 0.69363210943833 41.6746452869711 2.35491088722737 76.7137515141664 13571225.5309597 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
2127-Jun-23 05:29 00:02 Jupiter 1.97015341013175 1.97015275470861 1.970154065555 3.27040021770112 3.13618609264071 2498103.728726025 1.67351773492266 44.8236237802694 7.6110170232251 64.064096691643 5005473.40022166 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
2138-Mar-19 10:39 00:02 Jupiter 1.79176979177002 1.79176924358669 1.79177033995355 2.26492317607802 2.04558497903081 2502025.943633495 1.80707582413203 53.0303530135632 1.47635198835745 89.0300115816297 5634195.99195052 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
2148-Dec-29 14:12 00:02 Jupiter 1.7263349723682 1.72633476636495 1.72633517837145 1.94535439707403 1.67424850641146 2505964.091567223 1.91505294693559 21.9704438289143 7.80970504235163 -72.0008513706525 9957264.97796558 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37
2159-Oct-19 04:31 00:02 Jupiter 1.81602554589403 1.81602492596699 1.81602616582457 2.11730251819491 1.88418122679231 2509909.687909675 2.12183752099953 140.530117442422 2.5978119390133 85.4387932727737 10365874.6399782 T 122 CATAB v2.0f-lin.ifort 2021-Mar-16 10:37:57 2021-Mar-16 10:37

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