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 ]  
249285 (2008 SP304)
Classification: Main-belt Asteroid          SPK-ID: 2249285
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1162373960917603 7.3616e-08  
a 2.341002959895021 1.981e-08 au
q 2.06889087159372 1.7073e-07 au
i 2.258814339328543 7.4186e-06 deg
node 59.82414553144807 0.00015021 deg
peri 160.5420116140082 0.00015184 deg
M 142.2282963630778 2.5099e-05 deg
tp 2458083.625771900071
(2017-Nov-26.12577190)
8.8277e-05 TDB
period 1308.282014719254
3.58
1.6606e-05
4.546e-08
d
yr
n .2751700290531419 3.4927e-09 deg/d
Q 2.613115048196322 2.2112e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   data-arc span      6091 days (16.68 yr)  
   first obs. used      2003-03-24  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58688  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:47:07  

Additional Information
 Earth MOID = 1.06091 au 
 Jupiter MOID = 2.35795 au 
 T_jup = 3.554 
[ 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 17.5   n/a MPO454847  
diameter diameter 1.491 km 0.350 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.079   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249285 (2008 SP304)          Discovered 2008-Sep-24 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

Alternate Designations
 2008 SP304 = 2004 RY122 = 2005 WO101 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-06 00:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin