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JPL Small-Body Database Browser
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106 Dione
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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 113 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1621661366107806 4.2995e-08  
a 3.186263512433768 1.2268e-08 au
q 2.669559468398488 1.3522e-07 au
i 4.592184152974613 4.647e-06 deg
node 62.15755583561553 5.5887e-05 deg
peri 330.1541992183188 5.7457e-05 deg
M 224.9628044965032 1.5264e-05 deg
tp 2459379.741136873428
(2021-Jun-14.24113687)
9.0784e-05 TDB
period 2077.403993977126
5.69
1.1998e-05
3.285e-08
d
yr
n .173293206831085 1.0008e-09 deg/d
Q 3.702967556469047 1.4257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2512  
   data-arc span      54213 days (148.43 yr)  
   first obs. used      1871-03-16  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50783  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:05:04  

Additional Information
 Earth MOID = 1.67634 au 
 Jupiter MOID = 1.73167 au 
 T_jup = 3.172 
[ 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 7.41   n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 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. 2019-January); 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          Discovered 1868-Oct-10 by Watson, J. C. at Ann Arbor
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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