Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
118230 Sado (1996 WY2)
Classification: Main-belt Asteroid          SPK-ID: 2118230
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .281402595722453 5.8601e-08  
a 2.71092669075257 1.4286e-08 au
q 1.948064883161517 1.6188e-07 au
i 11.13254191318578 5.5849e-06 deg
node 64.08033604127569 3.2975e-05 deg
peri 323.5278785297174 3.4325e-05 deg
M 155.617570014073 1.3205e-05 deg
tp 2458495.756277945834
(2019-Jan-12.25627795)
5.6264e-05 TDB
period 1630.328374338169
4.46
1.2887e-05
3.528e-08
d
yr
n .220814411174155 1.7455e-09 deg/d
Q 3.473788498343624 1.8306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      864  
   data-arc span      8570 days (23.46 yr)  
   first obs. used      1996-11-30  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40491  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:13:01  

Additional Information
 Earth MOID = .965005 au 
 Jupiter MOID = 2.00412 au 
 T_jup = 3.279 
[ 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 15.81   n/a E2021B55  
rotation period rot_per 13.0889 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

118230 Sado           Discovered 1996 Nov. 30 by N. Sato at Chichibu.
Sado, an island in the Sea of Japan, appears even in Japan's oldest history book Kojiki, dating to the eighth century. The island is currently famous as the place where Noh drama (one of the "World's Intangible Cultural Treasures") took root in the lives of the people on the island.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070402/MPCPages.arcLast Updated: 2007-07-05
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-11 19:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin