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 ]  
226421 (2003 RU7)
Classification: Main-belt Asteroid          SPK-ID: 2226421
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 .2177823287300308 7.9395e-08  
a 3.091356253262472 4.6581e-08 au
q 2.418113489492828 2.3157e-07 au
i 17.66133088894429 9.3311e-06 deg
node 111.985006210071 2.1782e-05 deg
peri 278.9029535526046 3.8913e-05 deg
M 285.4655800494057 4.1619e-05 deg
tp 2459011.532712724053
(2020-Jun-11.03271272)
0.00023608 TDB
period 1985.281118156461
5.44
4.4872e-05
1.229e-07
d
yr
n .181334520692111 4.0986e-09 deg/d
Q 3.764599017032116 5.6726e-08 au
  Orbit Determination Parameters
   # obs. used (total)      282  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      1998-11-13  
   last obs. used      2018-07-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64803  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 17:41:40  

Additional Information
 Earth MOID = 1.49903 au 
 Jupiter MOID = 1.96608 au 
 T_jup = 3.117 
[ 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 MPO450050  
diameter diameter 2.942 km 0.579 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.245   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226421 (2003 RU7)          Discovered 2003-Sep-04 by Broughton, J. at Reedy Creek
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ 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 2019-Dec-13 11:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin