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 ]  
266862 (2009 UC121)
Classification: Main-belt Asteroid          SPK-ID: 2266862
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1075298434303969 7.2142e-08  
a 3.005069813012832 2.9805e-08 au
q 2.68193512652215 2.255e-07 au
i 1.624215375907702 7.3873e-06 deg
node 359.4786429633926 0.00015802 deg
peri 358.5969760885686 0.0001597 deg
M 329.6151385402731 2.1267e-05 deg
tp 2458761.096115158815
(2019-Oct-04.59611516)
0.00011185 TDB
period 1902.743625597991
5.21
2.8308e-05
7.75e-08
d
yr
n .1892004761739038 2.8148e-09 deg/d
Q 3.328204499503514 3.301e-08 au
  Orbit Determination Parameters
   # obs. used (total)      310  
   data-arc span      9528 days (26.09 yr)  
   first obs. used      1993-09-20  
   last obs. used      2019-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59052  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:06:53  

Additional Information
 Earth MOID = 1.67708 au 
 Jupiter MOID = 2.10214 au 
 T_jup = 3.242 
[ 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 15.9   n/a MPO460148  

266862 (2009 UC121)          Discovered 2009-Oct-24 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 UC121 = 2006 BK245 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-11 03:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin