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 ]  
56957 Seohideaki (2000 SY20)
Classification: Main-belt Asteroid          SPK-ID: 2056957
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08268644827965417 6.5258e-08  
a 2.786053468175764 3.4424e-08 AU
q 2.555684602175098 1.786e-07 AU
i 11.94904583752453 8.432e-06 deg
node 319.0062113830357 3.2927e-05 deg
peri 297.1789430630851 7.8335e-05 deg
M 133.5162377791131 7.5955e-05 deg
tp 2456370.538247199431
(2013-Mar-19.03824720)
0.00035751 JED
period 1698.566667100042
4.65
3.1481e-05
8.619e-08
d
yr
n .2119434032074979 3.9281e-09 deg/d
Q 3.01642233417643 3.727e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      730  
   data-arc span      8054 days (22.05 yr)  
   first obs. used      1993-01-21  
   last obs. used      2015-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49155  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 16:50:44  

Additional Information
 Earth MOID = 1.56703 AU 
 T_jup = 3.294 
[ 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 13.6 mag n/a MPO263792  

56957 Seohideaki           Discovered 2000 Sept. 24 by BATTeRS at the Bisei Spaceguard Center.
Hideaki Seo (b. 1932) was the governor of Sundai Gakuen high school. In 1966, he established a public astronomical lecture series where astronomers introduced current topics on astronomy and contributed to the promotion of astronomical education and information.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2000 SY20 = 2001 TN43 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-31 06:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin