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 ]  
66509 (1999 RK89)
Classification: Main-belt Asteroid          SPK-ID: 2066509
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1112969082686616 4.2322e-08  
a 2.45653068951794 1.0451e-08 au
q 2.18312641870751 1.0647e-07 au
i 6.015591812857902 4.8825e-06 deg
node 170.639073256098 4.221e-05 deg
peri 202.9139182661495 4.7366e-05 deg
M 123.9444773271942 2.2978e-05 deg
tp 2458516.320499852743
(2019-Feb-01.82049985)
8.8636e-05 TDB
period 1406.31211500352
3.85
8.9747e-06
2.457e-08
d
yr
n .2559886928081387 1.6337e-09 deg/d
Q 2.729934960328371 1.1615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1013  
   data-arc span      7426 days (20.33 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51973  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:50:26  

Additional Information
 Earth MOID = 1.18443 au 
 Jupiter MOID = 2.73378 au 
 T_jup = 3.476 
[ 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 14.9   n/a MPO359206  

66509 (1999 RK89)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ 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-Feb-19 07:45 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin