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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1401925914394254 2.876e-08  
a 2.306307263453126 6.5371e-09 au
q 1.982980071534063 6.5989e-08 au
i 6.962565760596717 3.1178e-06 deg
node 124.9149693548124 3.1743e-05 deg
peri 204.4337816380126 3.4405e-05 deg
M 15.13855046718784 1.333e-05 deg
tp 2458946.703258718533
(2020-Apr-07.20325872)
4.7334e-05 TDB
period 1279.305234890536
3.50
5.4392e-06
1.489e-08
d
yr
n .2814027412549465 1.1964e-09 deg/d
Q 2.629634455372189 7.4535e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1571  
   data-arc span      10230 days (28.01 yr)  
   first obs. used      1992-10-26  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53294  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:19:58  

Additional Information
 Earth MOID = .973651 au 
 Jupiter MOID = 2.68893 au 
 T_jup = 3.565 
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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 15.0   n/a MPO435780  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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