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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1054586896083636 9.1964e-08  
a 2.629365292894704 3.0814e-08 au
q 2.352075874604317 2.3983e-07 au
i 22.76830792570831 8.5416e-06 deg
node 122.0505593372926 1.9887e-05 deg
peri 316.8595058593126 4.3013e-05 deg
M 106.6546919053307 4.0573e-05 deg
tp 2456939.126888393695
(2014-Oct-08.62688839)
0.00017301 JED
period 1557.309080464076
4.26
2.7375e-05
7.495e-08
d
yr
n .2311679836174335 4.0636e-09 deg/d
Q 2.90665471118509 3.4063e-08 au
  Orbit Determination Parameters
   # obs. used (total)      667  
   data-arc span      6296 days (17.24 yr)  
   first obs. used      1998-03-01  
   last obs. used      2015-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50176  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:09:04  

Additional Information
 Earth MOID = 1.40151 au 
 Jupiter MOID = 2.30105 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 13.9 mag n/a MPO337533  

33167 (1998 EJ9)          Discovered 1998-Mar-11 by BAO Schmidt CCD Asteroid Program at Xinglong
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 2016-Feb-12 05:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin