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 ]  
295928 (2008 WM138)
Classification: Main-belt Asteroid          SPK-ID: 2295928
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06396557663251998 7.8472e-08  
a 2.600956422397211 3.1077e-08 au
q 2.434584745042517 1.9231e-07 au
i 14.13897181012559 7.3589e-06 deg
node 275.2866785401887 2.5341e-05 deg
peri 234.7825411304576 5.5682e-05 deg
M 212.7260789172997 5.0825e-05 deg
tp 2459627.289034136742
(2022-Feb-16.78903414)
0.00021587 TDB
period 1532.138552639737
4.19
2.746e-05
7.518e-08
d
yr
n .2349656950931443 4.2112e-09 deg/d
Q 2.767328099751905 3.3065e-08 au
  Orbit Determination Parameters
   # obs. used (total)      274  
   data-arc span      7209 days (19.74 yr)  
   first obs. used      1999-10-14  
   last obs. used      2019-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53132  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:43:34  

Additional Information
 Earth MOID = 1.47404 au 
 Jupiter MOID = 2.38764 au 
 T_jup = 3.369 
[ 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 15.7   n/a MPO433907  

295928 (2008 WM138)          Discovered 2003-Sep-22 by NEAT at Palomar
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-12 23:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin