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 ]  
168317 (1988 RY4)
Classification: Main-belt Asteroid          SPK-ID: 2168317
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3504688827968312 9.2466e-08  
a 2.778598395291887 2.8233e-08 au
q 1.804786119952872 2.6406e-07 au
i 9.812014683356219 1.0671e-05 deg
node 348.1486998304158 5.1247e-05 deg
peri 5.508002628490634 5.3598e-05 deg
M 317.4609621874281 2.1309e-05 deg
tp 2457600.404356767400
(2016-Jul-30.90435677)
0.00010275 JED
period 1691.753554778227
4.63
2.5785e-05
7.06e-08
d
yr
n .2127969520047455 3.2433e-09 deg/d
Q 3.752410670630903 3.8128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      217  
   data-arc span      15025 days (41.14 yr)  
   first obs. used      1974-06-23  
   last obs. used      2015-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52112  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 18:27:07  

Additional Information
 Earth MOID = .797984 au 
 Jupiter MOID = 1.68682 au 
 T_jup = 3.221 
[ 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 15.4 mag n/a MPO338354  

168317 (1988 RY4)          Discovered 1988-Sep-02 by Debehogne, H. at La Silla
Reference: 20071124/Numbers.arcLast Updated: 2007-11-26

[ show close-approach data ]
Alternate Designations
 1988 RY4 = 2002 TU182 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-09 01:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin