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 ]  
441793 (2009 EL18)
Classification: Main-belt Asteroid          SPK-ID: 2441793
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1244284155939269 1.8646e-07  
a 2.774693681686763 3.5178e-08 au
q 2.429442943116 5.0588e-07 au
i 13.3252721268256 1.0563e-05 deg
node 174.9913374810859 3.1214e-05 deg
peri 46.3838414667602 6.7665e-05 deg
M 118.7034175268784 4.7635e-05 deg
tp 2458443.850636748812
(2018-Nov-21.35063675)
0.00022245 TDB
period 1688.188722325977
4.62
3.2104e-05
8.79e-08
d
yr
n .2132463007476995 4.0553e-09 deg/d
Q 3.119944420257526 3.9555e-08 au
  Orbit Determination Parameters
   # obs. used (total)      80  
   data-arc span      6503 days (17.80 yr)  
   first obs. used      2000-05-04  
   last obs. used      2018-02-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65889  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:08:30  

Additional Information
 Earth MOID = 1.44384 au 
 Jupiter MOID = 1.88945 au 
 T_jup = 3.285 
[ 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 17.2   n/a MPO437717  

441793 (2009 EL18)          Discovered 2009-Mar-15 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2009 EL18 = 2000 JZ91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-14 04:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin