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 ]  
305547 (2008 SY256)
Classification: Main-belt Asteroid          SPK-ID: 2305547
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1332494898954475 5.221e-08  
a 2.226589331627697 1.3318e-08 au
q 1.929897438981661 1.1834e-07 au
i 7.654709345386419 5.9634e-06 deg
node 64.40515462445866 3.4597e-05 deg
peri 302.1373824725464 4.0267e-05 deg
M 68.8315650677912 1.875e-05 deg
tp 2458368.470204948996
(2018-Sep-06.97020495)
6.3687e-05 TDB
period 1213.552621331408
3.32
1.0888e-05
2.981e-08
d
yr
n .296649682652441 2.6615e-09 deg/d
Q 2.523281224273732 1.5092e-08 au
  Orbit Determination Parameters
   # obs. used (total)      250  
   data-arc span      6370 days (17.44 yr)  
   first obs. used      2001-07-24  
   last obs. used      2019-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60918  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:24:39  

Additional Information
 Earth MOID = .941322 au 
 Jupiter MOID = 2.95374 au 
 T_jup = 3.622 
[ 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 17.1   n/a MPO418594  

305547 (2008 SY256)          Discovered 2008-Sep-21 by CSS at Catalina
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

Alternate Designations
 2008 SY256 = 2005 YQ4 
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