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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1860610347181307 8.2733e-08  
a 2.26047035536542 1.1053e-08 AU
q 1.839884902096469 1.8348e-07 AU
i 4.362495466687389 8.2932e-06 deg
node 358.2454272213328 7.0828e-05 deg
peri 338.4199834884047 7.2654e-05 deg
M 52.00326474097385 1.9228e-05 deg
tp 2456621.181639586354
(2013-Nov-24.68163959)
6.5571e-05 JED
period 1241.35686615939
3.40
9.1048e-06
2.493e-08
d
yr
n .2900052433058971 2.1271e-09 deg/d
Q 2.68105580863437 1.311e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      9412 days (25.77 yr)  
   first obs. used      1986-09-01  
   last obs. used      2012-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49586  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 18:52:03  

Additional Information
 Earth MOID = .830223 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 14.5 mag n/a MPO233623  

18329 (1986 RY4)          Discovered 1986-Sep-01 by Debehogne, H. at La Silla (809)
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 2014-Apr-19 09:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin