Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
18401 (1992 WE4)
Classification: Main-belt Asteroid          SPK-ID: 2018401
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884370749997345 9.0029e-08  
a 2.528209287968524 1.9842e-08 AU
q 2.051800924756574 2.3037e-07 AU
i 16.49581415119605 8.3433e-06 deg
node 68.14130076290139 2.3211e-05 deg
peri 305.020527942638 2.9224e-05 deg
M 205.54594639047 1.7706e-05 deg
tp 2457630.462605509238
(2016-Aug-29.96260551)
7.4164e-05 JED
period 1468.31068970619
4.02
1.7285e-05
4.732e-08
d
yr
n .2451797174289021 2.8863e-09 deg/d
Q 3.004617651180473 2.358e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      804  
   data-arc span      8137 days (22.28 yr)  
   first obs. used      1992-11-17  
   last obs. used      2015-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52531  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:53:53  

Additional Information
 Earth MOID = 1.09921 AU 
 T_jup = 3.371 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.0 mag n/a MPO256999  

18401 (1992 WE4)          Discovered 1992-Nov-21 by Ueda, S., Kaneda, H. at Kushiro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 WE4 = 1999 JT127 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-29 19:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin