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 ]  
186220 (2001 WS77)
Classification: Main-belt Asteroid          SPK-ID: 2186220
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1024271281566829 3.9051e-08  
a 2.704578734323512 2.1765e-08 au
q 2.427556501693119 1.088e-07 au
i 6.048929874975314 4.7957e-06 deg
node 75.37624949047428 5.3048e-05 deg
peri 204.9267464780621 6.1906e-05 deg
M 231.4703133595677 3.3942e-05 deg
tp 2459780.527811963046
(2022-Jul-20.02781196)
0.00015455 TDB
period 1624.605316986822
4.45
1.9611e-05
5.369e-08
d
yr
n .2215922822828729 2.6749e-09 deg/d
Q 2.981600966953906 2.3994e-08 au
  Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      7087 days (19.40 yr)  
   first obs. used      2001-11-09  
   last obs. used      2021-04-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61791  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:13:56  

Additional Information
 Earth MOID = 1.41085 au 
 Jupiter MOID = 2.12195 au 
 T_jup = 3.350 
[ 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 16.33   n/a MPCxxxxx  

186220 (2001 WS77)          Discovered 2001-Nov-20 by LINEAR at Socorro
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

Alternate Designations
 2001 WS77 = 2008 FN93 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-20 20:00 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin