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 ]  
213405 (2001 WM8)
Classification: Main-belt Asteroid          SPK-ID: 2213405
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .148438343672213 4.4202e-08  
a 2.83689592050561 1.6973e-08 au
q 2.415791788895299 1.1907e-07 au
i 10.14670276069043 5.1145e-06 deg
node 81.85363964156689 2.4486e-05 deg
peri 272.7790497380154 3.0642e-05 deg
M 48.20471188991581 1.7359e-05 deg
tp 2458966.804407443867
(2020-Apr-27.30440744)
8.3708e-05 TDB
period 1745.273646948347
4.78
1.5662e-05
4.288e-08
d
yr
n .2062713779179951 1.8511e-09 deg/d
Q 3.25800005211592 1.9492e-08 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      7045 days (19.29 yr)  
   first obs. used      2001-10-25  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51522  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:42:34  

Additional Information
 Earth MOID = 1.43598 au 
 Jupiter MOID = 2.26002 au 
 T_jup = 3.272 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.63   n/a MPCxxxxx  

213405 (2001 WM8)          Discovered 2001-Nov-17 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-06 12:02 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin