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 ]  
442321 (2011 SA129)
Classification: Main-belt Asteroid          SPK-ID: 2442321
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2536292178744432 7.402e-08  
a 2.600290095036704 2.5164e-08 au
q 1.940780551985883 1.9648e-07 au
i 4.428236209761407 7.4015e-06 deg
node 157.3635014516778 5.7881e-05 deg
peri 147.9407903874912 7.7262e-05 deg
M 338.3013370193534 3.0449e-05 deg
tp 2458692.812731785742
(2019-Jul-28.31273179)
0.00012867 TDB
period 1531.549822793589
4.19
2.2232e-05
6.087e-08
d
yr
n .235056016227634 3.4121e-09 deg/d
Q 3.259799638087525 3.1546e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      7733 days (21.17 yr)  
   first obs. used      1998-07-17  
   last obs. used      2019-09-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49095  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:21  

Additional Information
 Earth MOID = .926766 au 
 Jupiter MOID = 2.01565 au 
 T_jup = 3.365 
[ 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 17.9   n/a MPO349188  

442321 (2011 SA129)          Discovered 1998-Jul-17 by ODAS at Caussols
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SA129 = 2002 LU49 = 2006 HX107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin