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 ]  
(2011 WN15)
Classification: Apollo [NEO, PHA]          SPK-ID: 3588786
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8579528818597946 1.3362e-07  
a 1.21653299122978 7.1859e-09 au
q .172805005526674 1.6242e-07 au
i 33.45689958248849 3.6947e-05 deg
node 75.58575757756763 7.2634e-06 deg
peri 218.5268595850543 1.5763e-05 deg
M 220.7937366427567 1.1287e-05 deg
tp 2458790.013668623972
(2019-Nov-02.51366862)		 1.6761e-05 TDB
period 490.0995045714665
1.34		 4.3424e-06
1.189e-08		 d
yr
n .7345447131491737 6.5083e-09 deg/d
Q 2.260260976932885 1.3351e-08 au
   Orbit Determination Parameters
   # obs. used (total)      269  
   # delay obs. used      4  
   # Doppler obs. used      1  
   data-arc span      2296 days (6.29 yr)  
   first obs. used      2011-11-22  
   last obs. used      2018-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .38754  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Mar-06 06:21:15  

Additional Information
 Earth MOID = .00276914 au 
 Jupiter MOID = 3.15825 au 
 T_jup = 4.692 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 19.6   n/a MPO441034  
rotation period rot_per 1.948 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2016) Minor Planet Bull. 43, 143-154.]

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin