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 ]  
117629 (2005 ET121)
Classification: Main-belt Asteroid          SPK-ID: 2117629
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1915324146182895 3.0676e-08  
a 2.385686560986542 1.0015e-08 au
q 1.928750253438386 7.6497e-08 au
i 6.736034663582283 5.4405e-06 deg
node 177.7716393125878 2.7753e-05 deg
peri 94.48352758878667 3.1896e-05 deg
M 319.5967166389189 1.4064e-05 deg
tp 2459151.554150075886
(2020-Oct-29.05415008)
5.2756e-05 TDB
period 1345.917695384642
3.68
8.4748e-06
2.32e-08
d
yr
n .2674754936609387 1.6842e-09 deg/d
Q 2.842622868534697 1.1933e-08 au
  Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      8074 days (22.11 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-05-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54412  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 01:50:31  

Additional Information
 Earth MOID = .927065 au 
 Jupiter MOID = 2.29637 au 
 T_jup = 3.501 
[ 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 16.5   n/a MPO432680  

117629 (2005 ET121)          Discovered 2005-Mar-08 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ 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 2020-Aug-10 16:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin