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 ]  
305501 (2008 EM98)
Classification: Main-belt Asteroid          SPK-ID: 2305501
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08253595566334493 1.2078e-07  
a 3.124729044744637 6.5554e-08 au
q 2.866826546847628 4.0907e-07 au
i 21.93260747193676 1.3698e-05 deg
node 347.8137137747539 1.9498e-05 deg
peri 218.8186644072657 7.248e-05 deg
M 314.9685124831636 7.6149e-05 deg
tp 2458852.865954349008
(2020-Jan-04.36595435)
0.00042973 TDB
period 2017.515933305005
5.52
6.3489e-05
1.738e-07
d
yr
n .1784372524931012 5.6152e-09 deg/d
Q 3.382631542641647 7.0965e-08 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      5883 days (16.11 yr)  
   first obs. used      2003-03-30  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62733  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:08:18  

Additional Information
 Earth MOID = 1.89286 au 
 Jupiter MOID = 1.65297 au 
 T_jup = 3.098 
[ 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 15.2   n/a MPO433969  

305501 (2008 EM98)          Discovered 2008-Mar-03 by CSS at Catalina
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
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