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 ]  
266391 (2007 ET139)
Classification: Main-belt Asteroid          SPK-ID: 2266391
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1161494764819587 4.5258e-08  
a 2.994928221305559 3.9428e-08 au
q 2.647068876299874 1.266e-07 au
i 2.335097911293387 5.526e-06 deg
node 100.5335013923566 0.0001661 deg
peri 142.7451524163039 0.00016927 deg
M 140.8622782392891 3.2785e-05 deg
tp 2458259.752385384888
(2018-May-21.25238538)
0.0001735 TDB
period 1893.119610123282
5.18
3.7384e-05
1.024e-07
d
yr
n .1901623109680621 3.7552e-09 deg/d
Q 3.342787566311244 4.4007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      204  
   data-arc span      6385 days (17.48 yr)  
   first obs. used      2002-04-10  
   last obs. used      2019-10-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59722  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:04:00  

Additional Information
 Earth MOID = 1.63449 au 
 Jupiter MOID = 1.6698 au 
 T_jup = 3.243 
[ 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 16.1   n/a MPO450145  

266391 (2007 ET139)          Discovered 2007-Mar-12 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ 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-13 18:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin