Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
18329 (1986 RY4)
Classification: Main-belt Asteroid          SPK-ID: 2018329
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1863185532477477 5.8336e-08  
a 2.260568556390544 1.2487e-08 au
q 1.839382693446508 1.3019e-07 au
i 4.364103996458972 6.217e-06 deg
node 358.21231013619 6.1875e-05 deg
peri 338.9340469168722 6.3507e-05 deg
M 283.3206028017989 1.8194e-05 deg
tp 2457864.924163932150
(2017-Apr-21.42416393)
6.4095e-05 JED
period 1241.43775895264
3.40
1.0286e-05
2.816e-08
d
yr
n .2899863463986466 2.4027e-09 deg/d
Q 2.681754419334579 1.4814e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1243  
   data-arc span      10821 days (29.63 yr)  
   first obs. used      1986-09-01  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46352  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:29:40  

Additional Information
 Earth MOID = .83025 au 
 Jupiter MOID = 2.68644 au 
 T_jup = 3.593 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6 mag n/a MPO337413  

18329 (1986 RY4)          Discovered 1986-Sep-01 by Debehogne, H. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1986 RY4 = 1993 TF13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-May-07 00:27 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin