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 ]  
120747 (1997 WE11)
Classification: Main-belt Asteroid          SPK-ID: 2120747
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1840434708867228 4.9796e-08  
a 2.378234247496122 9.0129e-09 au
q 1.940535762005263 1.1869e-07 au
i 2.277503736179725 5.5956e-06 deg
node 44.50647575207791 0.0001098 deg
peri 334.2035254257089 0.00011046 deg
M 124.4587389727649 1.1032e-05 deg
tp 2458737.369624981063
(2019-Sep-10.86962498)
4.077e-05 TDB
period 1339.616136101958
3.67
7.6152e-06
2.085e-08
d
yr
n .2687336993771478 1.5276e-09 deg/d
Q 2.815932732986982 1.0672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      407  
   data-arc span      8173 days (22.38 yr)  
   first obs. used      1997-09-09  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56299  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 06:22:44  

Additional Information
 Earth MOID = .941618 au 
 Jupiter MOID = 2.64554 au 
 T_jup = 3.516 
[ 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 16.9   n/a MPO449701  

120747 (1997 WE11)          Discovered 1997-Nov-22 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

Alternate Designations
 1997 WE11 = 2001 YR70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-07 05:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin