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 ]  
33167 (1998 EJ9)
Classification: Main-belt Asteroid          SPK-ID: 2033167
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1047532007647643 9.2515e-08  
a 2.629306900650445 3.5286e-08 AU
q 2.353878587014429 2.4187e-07 AU
i 22.77764748655299 8.605e-06 deg
node 122.0685835025044 2.1758e-05 deg
peri 317.0576831629988 4.7897e-05 deg
M 14.05727187194119 4.7556e-05 deg
tp 2456939.692255846388
(2014-Oct-09.19225585)
0.00020513 JED
period 1557.257204294041
4.26
3.1348e-05
8.583e-08
d
yr
n .2311756844067391 4.6537e-09 deg/d
Q 2.904735214286462 3.8982e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      6168 days (16.89 yr)  
   first obs. used      1998-03-01  
   last obs. used      2015-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5359  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:29:17  

Additional Information
 Earth MOID = 1.40303 AU 
 T_jup = 3.283 
[ 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 13.8 mag n/a MPO324611  

33167 (1998 EJ9)          Discovered 1998-Mar-11 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20020128/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 EJ9 = 1999 LS4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Feb-26 22:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin