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 ]  
100549 (1997 EK38)
Classification: Main-belt Asteroid          SPK-ID: 2100549
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1696315755249616 4.2805e-08  
a 3.06874819522268 2.6174e-08 au
q 2.548191603977675 1.3113e-07 au
i 1.647148314790163 4.4741e-06 deg
node 139.9436877731594 0.00018703 deg
peri 296.2800402582984 0.00018798 deg
M 209.9033052051651 2.3281e-05 deg
tp 2460019.170113290062
(2023-Mar-15.67011329)		 0.00013544 TDB
period 1963.542509628693
5.38		 2.5121e-05
6.878e-08		 d
yr
n .1833420963562822 2.3457e-09 deg/d
Q 3.589304786467685 3.0614e-08 au
   Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      8566 days (23.45 yr)  
   first obs. used      1997-02-06  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54654  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:05:36  

Additional Information
 Earth MOID = 1.56355 au 
 Jupiter MOID = 1.67925 au 
 T_jup = 3.209 
[ 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 14.79   n/a E2021B55  

100549 (1997 EK38)          Discovered 1997-Mar-05 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1997 EK38 = 2000 QX23 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-03 19:21 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin