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 ]  
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1425299874910497 7.9487e-08  
a 2.755527952714765 2.1625e-08 au
q 2.362782588083092 2.1071e-07 au
i 13.68479270074822 6.8168e-06 deg
node 18.53333000973432 1.9826e-05 deg
peri 152.9673583031048 2.5739e-05 deg
M 109.918799972697 1.6096e-05 deg
tp 2458490.376728842904
(2019-Jan-06.87672884)
7.3958e-05 TDB
period 1670.727643152675
4.57
1.9667e-05
5.385e-08
d
yr
n .2154749767117503 2.5365e-09 deg/d
Q 3.148273317346439 2.4707e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      8029 days (21.98 yr)  
   first obs. used      1998-09-19  
   last obs. used      2020-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58328  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:17:03  

Additional Information
 Earth MOID = 1.37445 au 
 Jupiter MOID = 1.82695 au 
 T_jup = 3.288 
[ 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 15.4   n/a MPO475033  
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 2020-Nov-26 11:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin