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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

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