Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
8557 Saroun (1995 OK)
Classification: Main-belt Asteroid          SPK-ID: 2008557
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .139824974212213 5.4429e-08  
a 2.307648615801705 1.3969e-08 AU
q 1.984981707606382 1.2421e-07 AU
i 6.960884048078398 5.5621e-06 deg
node 124.9513127646573 4.6979e-05 deg
peri 204.5886029491819 5.2375e-05 deg
M 172.2582299616774 2.5794e-05 deg
tp 2456387.824623867716
(2013-Apr-05.32462387)
8.8652e-05 JED
period 1280.421466403616
3.51
1.1626e-05
3.183e-08
d
yr
n .281157423118772 2.5529e-09 deg/d
Q 2.630315523997028 1.5922e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      866  
   data-arc span      8288 days (22.69 yr)  
   first obs. used      1992-10-26  
   last obs. used      2015-07-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59863  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:25:06  

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

[ show close-approach data ]
Alternate Designations
 1995 OK = 1994 CQ18 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Sep-03 06:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin