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 ]  
243929 (2001 OU61)
Classification: Main-belt Asteroid          SPK-ID: 2243929
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2019781617739183 6.2815e-08  
a 2.75086825743858 2.1386e-08 au
q 2.195252943518914 1.6838e-07 au
i 7.095494935473876 7.1248e-06 deg
node 334.3530144804476 5.0985e-05 deg
peri 1.2927389057938 5.3524e-05 deg
M 307.1074852279626 1.7802e-05 deg
tp 2458845.347024193817
(2019-Dec-27.84702419)
8.3972e-05 TDB
period 1666.491545914805
4.56
1.9434e-05
5.321e-08
d
yr
n .2160226980343794 2.5192e-09 deg/d
Q 3.306483571358247 2.5706e-08 au
  Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      6112 days (16.73 yr)  
   first obs. used      2001-07-21  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54957  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:35:00  

Additional Information
 Earth MOID = 1.18468 au 
 Jupiter MOID = 2.07379 au 
 T_jup = 3.305 
[ 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 15.4   n/a MPO433598  
diameter diameter 3.220 km 0.250 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.142   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243929 (2001 OU61)          Discovered 2001-Jul-21 by NEAT at Haleakala
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-16 10:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin