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 ]  
541745 (2011 WY121)
Classification: Main-belt Asteroid          SPK-ID: 2541745
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07213907425949299 7.9914e-08  
a 2.576571893445551 3.4768e-08 au
q 2.39070038228936 2.1313e-07 au
i 14.28979708927871 7.6601e-06 deg
node 244.0919361607847 3.4522e-05 deg
peri 35.30728518859858 0.00013524 deg
M 207.3676019616557 0.0001419 deg
tp 2459840.980705481816
(2022-Sep-18.48070548)
0.00059823 TDB
period 1510.642936472303
4.14
3.0577e-05
8.372e-08
d
yr
n .2383091273975586 4.8236e-09 deg/d
Q 2.762443404601742 3.7277e-08 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      4853 days (13.29 yr)  
   first obs. used      2007-12-05  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57006  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:33  

Additional Information
 Earth MOID = 1.38497 au 
 Jupiter MOID = 2.31502 au 
 T_jup = 3.380 
[ 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 17.14   .35246 MPCxxxxx autocmod 2.8

541745 (2011 WY121)          Discovered 2007-Dec-05 by Mount Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2019-12-13
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-23 09:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin