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JPL Small-Body Database Browser
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8217 Dominikhasek (1995 HC)
Classification: Main-belt Asteroid          SPK-ID: 2008217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1746996139836946 3.6463e-08  
a 2.249569926715238 7.2359e-09 au
q 1.856570928888758 8.4495e-08 au
i 2.371056411239256 3.529e-06 deg
node 179.610036079061 8.477e-05 deg
peri 134.8412143528903 8.5273e-05 deg
M 43.11983368657607 9.413e-06 deg
tp 2458852.887801179098
3.2011e-05 TDB
period 1232.388602465049
n .2921156518973971 1.4094e-09 deg/d
Q 2.642568924541718 8.5e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1719  
   data-arc span      25455 days (69.69 yr)  
   first obs. used      1949-11-19  
   last obs. used      2019-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51038  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:48:56  

Additional Information
 Earth MOID = .843725 au 
 Jupiter MOID = 2.63191 au 
 T_jup = 3.607 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9   n/a MPO384829  
rotation period rot_per 6.91 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

8217 Dominikhašek           Discovered 1995 Apr. 21 by P. Pravec and L. Sarounova at Ondrejov.
Named in honor of Dominik Hašek (b. 1965), goalkeeper, and the Czech Olympic hockey team, winners of the gold medal at the 1998 Winter Olympic Games in Nagano. Although the success was basically due to teamwork, Hašek's contribution was the most significant. This great win in "the hockey tournament of the century" was widely appreciated by the Czech people and recognized as one of the greatest achievements in the history of Czech sport.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980411/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1995 HC = 1996 RH5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Jun-05 12:55 UT
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