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 ]  
212080 (2005 EJ84)
Classification: Main-belt Asteroid          SPK-ID: 2212080
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1706590657888915 9.0377e-08  
a 2.462748919327876 1.9865e-08 au
q 2.042458489482779 2.1164e-07 au
i 10.66497862527872 7.196e-06 deg
node 345.645174422696 2.8147e-05 deg
peri 202.6814396994089 3.2266e-05 deg
M 208.9410304547955 1.6486e-05 deg
tp 2459192.842166802387
(2020-Dec-09.34216680)
6.8647e-05 TDB
period 1411.655201216277
3.86
1.708e-05
4.676e-08
d
yr
n .2550197808146247 3.0855e-09 deg/d
Q 2.883039349172973 2.3255e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      6461 days (17.69 yr)  
   first obs. used      2001-01-05  
   last obs. used      2018-09-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48688  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:29:59  

Additional Information
 Earth MOID = 1.04919 au 
 Jupiter MOID = 2.09974 au 
 T_jup = 3.445 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO454522  
diameter diameter 3.164 km 1.159 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212080 (2005 EJ84)          Discovered 2005-Mar-04 by LINEAR at Socorro
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin