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 ]  
213937 (2003 WR20)
Classification: Main-belt Asteroid          SPK-ID: 2213937
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05865895044650838 3.6009e-08  
a 2.524461403726217 1.521e-08 au
q 2.376379147340917 9.0025e-08 au
i 8.613312119225364 6.1158e-06 deg
node 19.99753732412923 2.6745e-05 deg
peri 100.8786508013332 6.0335e-05 deg
M 38.91757219637355 5.2927e-05 deg
tp 2459042.122031269555
(2020-Jul-11.62203127)
0.00021536 TDB
period 1465.046906196095
4.01
1.324e-05
3.625e-08
d
yr
n .2457259207725424 2.2207e-09 deg/d
Q 2.672543660111516 1.6102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      281  
   data-arc span      7342 days (20.10 yr)  
   first obs. used      2001-03-25  
   last obs. used      2021-05-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53336  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:39:43  

Additional Information
 Earth MOID = 1.40948 au 
 Jupiter MOID = 2.36239 au 
 T_jup = 3.436 
[ 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 16.67   n/a MPCxxxxx  

213937 (2003 WR20)          Discovered 2003-Nov-19 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

Alternate Designations
 2003 WR20 = 2005 GG61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-07 23:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin