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 ]  
59955 (1999 RX226)
Classification: Main-belt Asteroid          SPK-ID: 2059955
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05527999856820167 5.8367e-08  
a 3.015208629714535 2.902e-08 au
q 2.848527900981086 1.7605e-07 au
i 9.847153757553988 5.7561e-06 deg
node 280.6963808429263 3.7987e-05 deg
peri 209.7906970160554 7.1338e-05 deg
M 133.0768956815632 6.1294e-05 deg
tp 2457893.572886939679
(2017-May-20.07288694)
0.00032319 TDB
period 1912.381254449218
5.24
2.7608e-05
7.559e-08
d
yr
n .188246982217823 2.7177e-09 deg/d
Q 3.181889358447984 3.0624e-08 au
  Orbit Determination Parameters
   # obs. used (total)      626  
   data-arc span      9961 days (27.27 yr)  
   first obs. used      1991-01-15  
   last obs. used      2018-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57251  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 01:33:59  

Additional Information
 Earth MOID = 1.8688 au 
 Jupiter MOID = 1.93294 au 
 T_jup = 3.223 
[ 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 14.3   n/a MPO432154  
diameter diameter 5.052 km 0.230 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.063   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59955 (1999 RX226)          Discovered 1999-Sep-05 by CSS at Catalina
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RX226 = 2000 WZ111 
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-19 18:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin