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
JPL Small-Body Database Browser
Search: [ help ]  
441849 (2009 WO20)
Classification: Main-belt Asteroid          SPK-ID: 2441849
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1231312313887376 4.6581e-08  
a 2.19522756955626 1.846e-08 au
q 1.924926495738292 9.4845e-08 au
i 3.314757018656375 7.9816e-06 deg
node 301.2081911326218 8.9188e-05 deg
peri 120.1017927244247 9.9515e-05 deg
M 92.4872240867529 4.4074e-05 deg
tp 2458695.291240814028
(2019-Jul-30.79124081)
0.00014322 TDB
period 1188.003579866201
3.25
1.4985e-05
4.103e-08
d
yr
n .3030293898950582 3.8223e-09 deg/d
Q 2.465528643374229 2.0733e-08 au
  Orbit Determination Parameters
   # obs. used (total)      106  
   data-arc span      4785 days (13.10 yr)  
   first obs. used      2006-12-27  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5953  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:37:56  

Additional Information
 Earth MOID = .940371 au 
 Jupiter MOID = 2.80439 au 
 T_jup = 3.657 
[ 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 18.0   n/a MPO437717  

441849 (2009 WO20)          Discovered 2006-Dec-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2009 WO20 = 2012 TO43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-05 10:26 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin