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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
117668 (2005 EN207)
Classification: Main-belt Asteroid          SPK-ID: 2117668
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1417329474701336 9.7544e-08  
a 2.753276290564815 2.1954e-08 au
q 2.363046326703428 2.6374e-07 au
i 13.69282927908753 1.1428e-05 deg
node 18.62847945075843 2.0642e-05 deg
peri 152.6085499109741 3.2472e-05 deg
M 24.01544903245425 2.259e-05 deg
tp 2458489.183041968846
(2019-Jan-05.68304197)
0.00010476 TDB
period 1668.680224844419
4.57
1.9958e-05
5.464e-08
d
yr
n .2157393577511622 2.5803e-09 deg/d
Q 3.143506254426202 2.5065e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      7539 days (20.64 yr)  
   first obs. used      1998-09-19  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59374  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:59  

Additional Information
 Earth MOID = 1.37541 au 
 Jupiter MOID = 1.83359 au 
 T_jup = 3.289 
[ 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 15.3   n/a MPO254009  
diameter diameter 2.479 km 0.290 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.176   0.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

117668 (2005 EN207)          Discovered 2005-Mar-09 by CSS at Catalina
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 2019-Dec-13 08:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin