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 ]  
266740 (2009 ST33)
Classification: Main-belt Asteroid          SPK-ID: 2266740
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09032036334090503 1.6093e-07  
a 2.584065614392808 2.9103e-08 au
q 2.35067186920411 4.2145e-07 au
i 2.855734478372197 1.0146e-05 deg
node 312.2912065688133 0.0001348 deg
peri 170.7774434913432 0.00015297 deg
M 16.36993813635537 6.2734e-05 deg
tp 2458531.508073871023
(2019-Feb-17.00807387)
0.00026445 TDB
period 1517.238073812385
4.15
2.5632e-05
7.018e-08
d
yr
n .2372732442018299 4.0084e-09 deg/d
Q 2.817459359581505 3.1732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      4854 days (13.29 yr)  
   first obs. used      2005-10-25  
   last obs. used      2019-02-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65685  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:04:21  

Additional Information
 Earth MOID = 1.3667 au 
 Jupiter MOID = 2.23192 au 
 T_jup = 3.416 
[ show covariance matrix ]

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 17.3   n/a MPO334527  

266740 (2009 ST33)          Discovered 2009-Sep-16 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 ST33 = 2005 UD221 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 19:16 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin