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 ET)
Classification: Apollo [NEO]          SPK-ID: 3449118
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 2454893.5 (2009-Mar-03.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3055425383968462 0.0048085  
a 1.447890845854252 0.009291 au
q 1.005498601490387 0.00054306 au
i 3.177741562105729 0.01266 deg
node 153.4946317546798 0.087972 deg
peri 28.94867178887956 0.50229 deg
M 349.5859358029761 0.09883 deg
tp 2454911.908563932355
(2009-Mar-21.40856393)
0.3389 TDB
period 636.3589555691128
1.74
6.1252
0.01677
d
yr
n .5657184468756983 0.0054452 deg/d
Q 1.890283090218117 0.01213 au
  Orbit Determination Parameters
   # obs. used (total)      15  
   data-arc span      1 day  
   first obs. used      2009-03-02  
   last obs. used      2009-03-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .46773  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 02:39:02  

Additional Information
 Earth MOID = .0235933 au 
 Jupiter MOID = 3.06391 au 
 T_jup = 4.597 
[ 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 27.3   n/a MPO154268  

[ 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-22 15:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin