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 ]  
226757 (2004 RX61)
Classification: Main-belt Asteroid          SPK-ID: 2226757
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2053571713091902 5.3557e-08  
a 2.79600890205794 1.772e-08 au
q 2.221828422976007 1.5224e-07 au
i 4.539142492658707 6.0974e-06 deg
node 173.2344820029343 6.0427e-05 deg
peri 186.1031708450035 6.1802e-05 deg
M 40.15888224187542 1.1397e-05 deg
tp 2458410.004216531936
(2018-Oct-18.50421653)
5.3978e-05 TDB
period 1707.679054298812
4.68
1.6234e-05
4.445e-08
d
yr
n .2108124469254084 2.0041e-09 deg/d
Q 3.370189381139872 2.1359e-08 au
  Orbit Determination Parameters
   # obs. used (total)      329  
   data-arc span      8428 days (23.07 yr)  
   first obs. used      1995-10-17  
   last obs. used      2018-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6034  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 18:52:54  

Additional Information
 Earth MOID = 1.21751 au 
 Jupiter MOID = 2.07954 au 
 T_jup = 3.291 
[ 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 16.3   n/a MPO459998  
diameter diameter 3.111 km 0.833 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226757 (2004 RX61)          Discovered 2004-Sep-08 by LINEAR at Socorro
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-14 10:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin