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 ]  
249478 (2009 ON3)
Classification: Main-belt Asteroid          SPK-ID: 2249478
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 .04935470949609247 9.7008e-08  
a 3.152686097375912 5.7253e-08 au
q 2.997086190907555 3.1027e-07 au
i 20.47770169266026 8.6277e-06 deg
node 291.5795831448845 2.3626e-05 deg
peri 351.2014930255229 0.0001126 deg
M 290.9373641688749 0.00011398 deg
tp 2458992.747489869735
(2020-May-23.24748987)
0.00064762 TDB
period 2044.6525773849
5.60
5.5696e-05
1.525e-07
d
yr
n .1760690319626028 4.7961e-09 deg/d
Q 3.30828600384427 6.0078e-08 au
  Orbit Determination Parameters
   # obs. used (total)      338  
   data-arc span      6707 days (18.36 yr)  
   first obs. used      1999-10-31  
   last obs. used      2018-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52028  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:56:09  

Additional Information
 Earth MOID = 1.98103 au 
 Jupiter MOID = 1.89651 au 
 T_jup = 3.107 
[ 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 14.6   n/a MPO401882  
diameter diameter 6.526 km 0.132 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.079   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249478 (2009 ON3)          Discovered 2009-Jul-17 by La Sagra at La Sagra
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 ON3 = 2004 RF248 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-12 01:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin