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 ]  
215878 (2005 EM230)
Classification: Main-belt Asteroid          SPK-ID: 2215878
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 .1607601309418074 5.2259e-08  
a 2.265076398443207 1.3707e-08 au
q 1.900942420036279 1.2454e-07 au
i 3.971082226541491 5.8522e-06 deg
node 138.6906297377764 7.7715e-05 deg
peri 165.9022089988777 8.0081e-05 deg
M 281.0573036090218 2.1565e-05 deg
tp 2458873.543702628217
(2020-Jan-25.04370263)
7.5478e-05 TDB
period 1245.152970951621
3.41
1.1303e-05
3.095e-08
d
yr
n .2891211027066549 2.6244e-09 deg/d
Q 2.629210376850134 1.5911e-08 au
  Orbit Determination Parameters
   # obs. used (total)      282  
   data-arc span      7746 days (21.21 yr)  
   first obs. used      1998-02-24  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58806  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:22:18  

Additional Information
 Earth MOID = .885344 au 
 Jupiter MOID = 2.59493 au 
 T_jup = 3.596 
[ 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 17.0   n/a MPO433413  
rotation period rot_per 25.882 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

215878 (2005 EM230)          Discovered 2005-Mar-10 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2005 EM230 = 2006 QQ6 
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