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 ]  
379377 (2009 WZ261)
Classification: Main-belt Asteroid          SPK-ID: 2379377
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1696259078086149 1.1127e-07  
a 2.616646092597379 3.2218e-08 au
q 2.172795123726684 3.0338e-07 au
i 15.44290868394855 7.9606e-06 deg
node 79.43859412131263 3.0606e-05 deg
peri 338.7099754285956 4.0197e-05 deg
M 103.4111488947919 2.5757e-05 deg
tp 2458156.400003059053
(2018-Feb-06.90000306)
0.00010654 TDB
period 1546.022847704699
4.23
2.8553e-05
7.817e-08
d
yr
n .2328555496669882 4.3006e-09 deg/d
Q 3.060497061468075 3.7683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      189  
   data-arc span      6764 days (18.52 yr)  
   first obs. used      2000-09-29  
   last obs. used      2019-04-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62216  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:17:41  

Additional Information
 Earth MOID = 1.1922 au 
 Jupiter MOID = 2.27614 au 
 T_jup = 3.336 
[ 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 16.3   n/a MPO437555  

379377 (2009 WZ261)          Discovered 2009-Nov-17 by LINEAR at Socorro
Reference: Last Updated: 2013-11-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-10 19:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin