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 ]  
305504 (2008 ED109)
Classification: Main-belt Asteroid          SPK-ID: 2305504
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1862475802347561 6.35e-08  
a 3.060970660880554 3.0894e-08 au
q 2.490872282121969 2.099e-07 au
i 12.20265279824553 5.3725e-06 deg
node 151.6849396005098 2.6728e-05 deg
peri 197.1164032052009 3.0088e-05 deg
M 327.8556419365833 1.4265e-05 deg
tp 2459571.158382415427
(2021-Dec-22.65838242)
7.8294e-05 TDB
period 1956.082543179289
5.36
2.9614e-05
8.108e-08
d
yr
n .1840413132131323 2.7863e-09 deg/d
Q 3.631069039639139 3.6648e-08 au
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      7590 days (20.78 yr)  
   first obs. used      2000-09-23  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59258  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 16:07:10  

Additional Information
 Earth MOID = 1.48574 au 
 Jupiter MOID = 1.79625 au 
 T_jup = 3.173 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457458.5 (2016-Mar-11.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1852217465777854 6.3709e-08  
q 2.492976251546577 2.1019e-07 au
tp 2457620.440064571110
(2016-Aug-19.94006457)
7.4808e-05 TDB
node 151.7118577402705 2.675e-05 deg
peri 197.6987967789292 3.012e-05 deg
i 12.19754370828834 5.3703e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      231  
   data-arc span      7590 days (20.78 yr)  
   first obs. used      2000-09-23  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59258  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 16:07:10  

Additional Information
 Jupiter MOID = 1.79625 au 
 T_jup = 3.173 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.058786230923219E-15 -1.332413487912905E-14 1.010245055582956E-12 -1.562407880087897E-14 3.264854520858461E-13 -2.215871105554734E-15
q -1.332413487912905E-14 4.417869585800525E-14 -3.21936384032449E-12 5.310114017512464E-14 -1.062650566172363E-12 9.267544004771897E-15
tp 1.010245055582956E-12 -3.21936384032449E-12 5.596222598323771E-9 3.627695213539073E-12 1.072773483400962E-9 5.456787049556855E-12
node -1.562407880087897E-14 5.310114017512464E-14 3.627695213539073E-12 7.155443876233989E-10 -6.984726382893539E-10 3.365371972178104E-11
peri 3.264854520858461E-13 -1.062650566172363E-12 1.072773483400962E-9 -6.984726382893539E-10 9.072299796125583E-10 -3.190204277048303E-11
i -2.215871105554734E-15 9.267544004771897E-15 5.456787049556855E-12 3.365371972178104E-11 -3.190204277048303E-11 2.884051179373961E-11

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 15.86   n/a E2021B25  

305504 (2008 ED109)          Discovered 2008-Mar-07 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-29 13:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin