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8557 Saroun (1995 OK)
Classification: Main-belt Asteroid          SPK-ID: 2008557
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1398249819786866 5.5622e-08  
a 2.307648620106812 1.5251e-08 AU
q 1.984981693387236 1.2601e-07 AU
i 6.960881970561932 6.0058e-06 deg
node 124.9513445837213 5.481e-05 deg
peri 204.5885619110702 6.0946e-05 deg
M 172.2582359067238 2.6959e-05 deg
tp 2456387.824601008319
(2013-Apr-05.32460101)
9.3689e-05 JED
period 1280.421469986712
3.51
1.2693e-05
3.475e-08
d
yr
n .2811574223319889 2.7872e-09 deg/d
Q 2.630315546826387 1.7384e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      8067 days (22.09 yr)  
   first obs. used      1992-10-26  
   last obs. used      2014-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61536  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:26:21  

Additional Information
 Earth MOID = .976418 AU 
 T_jup = 3.564 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.0 mag n/a MPO279605  

8557 Šaroun           Discovered 1995 July 23 by L. Sarounova at Ondrejov.
Named in honor of the discoverer's father, Jaroslav Šaroun (b. 1943). A teacher at the Prague Academy of Musical Arts and a member of the Czech Philharmonic Orchestra, he is a pianist who is always in great demand as an accompanist for Czech and foreign singers. As a lover of astronomy, he influenced and supported his daughter in her desire to become an astronomer. This minor planet was discovered on the day after his birthday.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980808/MPCPages.arcLast Updated: 2009-11-17

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Alternate Designations
 1995 OK = 1994 CQ18 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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