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 ]  
117688 (2005 EX268)
Classification: Main-belt Asteroid          SPK-ID: 2117688
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02448060781838898 4.568e-08  
a 2.851391729650277 2.1415e-08 au
q 2.78158792698011 1.3012e-07 au
i 2.803854996018914 5.6869e-06 deg
node 52.67647362730494 9.8941e-05 deg
peri 221.892682329375 0.00014914 deg
M 343.7645129720448 0.00011166 deg
tp 2459079.813401453920
(2020-Aug-18.31340145)
0.0005455 TDB
period 1758.667570258117
4.81
1.9812e-05
5.424e-08
d
yr
n .2047004255313375 2.3061e-09 deg/d
Q 2.921195532320443 2.1939e-08 au
  Orbit Determination Parameters
   # obs. used (total)      344  
   data-arc span      9685 days (26.52 yr)  
   first obs. used      1992-09-27  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56351  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:16:54  

Additional Information
 Earth MOID = 1.7661 au 
 Jupiter MOID = 2.08479 au 
 T_jup = 3.303 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO432680  

117688 (2005 EX268)          Discovered 2005-Mar-14 by Mt. Lemmon Survey at Mt. Lemmon
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2005 EX268 = 1995 FM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-22 13:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin