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 ]  
277087 (2005 EK204)
Classification: Main-belt Asteroid          SPK-ID: 2277087
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1803512622560869 8.3931e-08  
a 3.19209023438467 4.373e-08 au
q 2.616392731378066 2.7471e-07 au
i 2.189741689492041 8.6737e-06 deg
node 58.9554105216745 0.00019799 deg
peri 180.8688782133076 0.00019979 deg
M 201.6896165526858 3.5013e-05 deg
tp 2459916.547652738186
(2022-Dec-03.04765274)
0.00021745 TDB
period 2083.105023212183
5.70
4.2806e-05
1.172e-07
d
yr
n .1728189390301954 3.5513e-09 deg/d
Q 3.767787737391274 5.1617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      9346 days (25.59 yr)  
   first obs. used      1994-05-03  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62072  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 21:20:51  

Additional Information
 Earth MOID = 1.60407 au 
 Jupiter MOID = 1.24677 au 
 T_jup = 3.170 
[ 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 15.9   n/a MPO503246  

277087 (2005 EK204)          Discovered 2005-Mar-11 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 2005 EK204 = 1994 JM4 
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-29 12:44 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin