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 ]  
305497 (2008 EP74)
Classification: Main-belt Asteroid          SPK-ID: 2305497
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06967124179203528 5.3664e-08  
a 3.024525297604365 2.9281e-08 au
q 2.813802864288844 1.6045e-07 au
i 3.1309851972279 5.5966e-06 deg
node 114.4389985224044 0.00010889 deg
peri 88.32160806289467 0.00011629 deg
M 20.79601903682805 4.0287e-05 deg
tp 2458489.515593367593
(2019-Jan-06.01559337)
0.00021507 TDB
period 1921.251674030046
5.26
2.79e-05
7.639e-08
d
yr
n .187377845841955 2.721e-09 deg/d
Q 3.235247730919886 3.1321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      9950 days (27.24 yr)  
   first obs. used      1992-02-29  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6267  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:54:48  

Additional Information
 Earth MOID = 1.81278 au 
 Jupiter MOID = 1.72701 au 
 T_jup = 3.239 
[ 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 16.1   n/a MPO437357  

305497 (2008 EP74)          Discovered 2008-Mar-07 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Alternate Designations
 2008 EP74 = 2002 AW194 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin