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 ]  
(2009 DN4)
Classification: Apollo [NEO]          SPK-ID: 3448005
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2454883.5 (2009-Feb-21.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2387325667793158 0.0008974  
a 1.226215363512133 0.0011578 au
q .9334778223566494 0.00022185 au
i 3.130339547238526 0.010452 deg
node 151.8794541105084 0.0052983 deg
peri 53.3469564186224 0.025175 deg
M 325.5605449210602 0.05368 deg
tp 2454930.946297435612
(2009-Apr-09.44629744)
0.013229 TDB
period 495.9621758726777
1.36
0.70243
0.001923
d
yr
n .7258618046155568 0.001028 deg/d
Q 1.518952904667616 0.0014342 au
  Orbit Determination Parameters
   # obs. used (total)      21  
   data-arc span      3 days  
   first obs. used      2009-02-20  
   last obs. used      2009-02-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      8  
   norm. resid. RMS      .37755  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:36:05  

Additional Information
 Earth MOID = .00697516 au 
 Jupiter MOID = 3.43539 au 
 T_jup = 5.185 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.0   n/a MPO154258  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-23 01:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin