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 ]  
390847 (2004 RY161)
Classification: Main-belt Asteroid          SPK-ID: 2390847
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2580742029258241 5.514e-08  
a 3.114474645900175 3.469e-08 au
q 2.310709084126799 1.736e-07 au
i 16.21737694719436 7.9647e-06 deg
node 192.004915747357 1.6824e-05 deg
peri 120.3360061297737 2.2431e-05 deg
M 258.9758601068181 1.38e-05 deg
tp 2459163.875929134459
(2020-Nov-10.37592913)
8.1467e-05 TDB
period 2007.592786267247
5.50
3.3542e-05
9.183e-08
d
yr
n .1793192336924832 2.996e-09 deg/d
Q 3.91824020767355 4.3642e-08 au
  Orbit Determination Parameters
   # obs. used (total)      214  
   data-arc span      5824 days (15.95 yr)  
   first obs. used      2003-04-24  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59278  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:50:21  

Additional Information
 Earth MOID = 1.34494 au 
 Jupiter MOID = 1.79535 au 
 T_jup = 3.106 
[ 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 16.2   n/a MPO472016  

390847 (2004 RY161)          Discovered 2004-Sep-11 by LINEAR at Socorro
Reference: Last Updated: 2014-04-17

[ 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 2020-Jan-21 05:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin