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 ]  
423317 (2005 EH261)
Classification: Main-belt Asteroid          SPK-ID: 2423317
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05531038044905484 6.0947e-08  
a 3.110198779992019 5.4659e-08 au
q 2.938172502198474 1.9597e-07 au
i 10.43664096175063 9.5076e-06 deg
node 4.134390987614913 3.5507e-05 deg
peri 274.7991302107943 9.4457e-05 deg
M 197.8128012221678 8.6022e-05 deg
tp 2459903.098731962190
(2022-Nov-19.59873196)
0.0004761 TDB
period 2003.459865852254
5.49
5.2814e-05
1.446e-07
d
yr
n .179689149823253 4.7369e-09 deg/d
Q 3.282225057785564 5.7683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      4969 days (13.60 yr)  
   first obs. used      2005-03-11  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58201  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 05:23:43  

Additional Information
 Earth MOID = 1.94699 au 
 Jupiter MOID = 1.84272 au 
 T_jup = 3.191 
[ 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 16.0   n/a MPO460617  
diameter diameter 4.186 km 2.416 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.033   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

423317 (2005 EH261)          Discovered 2005-Mar-12 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-02-04

[ show close-approach data ]
Alternate Designations
 2005 EH261 = 2007 VD195 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Feb-23 15:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin