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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
392254 (2009 WY227)
Classification: Main-belt Asteroid          SPK-ID: 2392254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09628017628538341 8.9723e-08  
a 2.280057958305319 2.9302e-08 au
q 2.060533576138792 2.1331e-07 au
i 5.097881086335884 1.0452e-05 deg
node 73.60428500140893 9.1152e-05 deg
peri 51.47309358844284 0.00010691 deg
M 318.9321453453899 6.1043e-05 deg
tp 2459143.955357653828
(2020-Oct-21.45535765)
0.00021481 TDB
period 1257.526822126826
3.44
2.4241e-05
6.637e-08
d
yr
n .2862761999709401 5.5185e-09 deg/d
Q 2.499582340471846 3.2123e-08 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      4668 days (12.78 yr)  
   first obs. used      2007-01-10  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69407  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 13:03:56  

Additional Information
 Earth MOID = 1.08062 au 
 Jupiter MOID = 2.5484 au 
 T_jup = 3.595 
[ 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 18.1   n/a MPO494987  

392254 (2009 WY227)          Discovered 2007-Jan-10 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-27 09:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin