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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3503228355316527 1.2409e-07  
a 2.777973830081439 2.8254e-08 AU
q 1.804786160894584 3.5049e-07 AU
i 9.812366438090981 1.5467e-05 deg
node 348.1528703261791 5.8822e-05 deg
peri 5.559754609069948 6.2341e-05 deg
M 189.6586611729586 2.1119e-05 deg
tp 2457600.717800158212
(2016-Jul-31.21780016)
0.00010899 JED
period 1691.183185717831
4.63
2.5801e-05
7.064e-08
d
yr
n .2128687199826885 3.2475e-09 deg/d
Q 3.751161499268294 3.8152e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      14535 days (39.79 yr)  
   first obs. used      1974-06-23  
   last obs. used      2014-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53449  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 12:11:58  

Additional Information
 Earth MOID = .798582 AU 
 T_jup = 3.222 
[ 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 15.3 mag n/a MPO251379  

168317 (1988 RY4)          Discovered 1988-Sep-02 by Debehogne, H. at La Silla (809)
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 2014-Jul-25 18:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin