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 ]  
15257 (1990 RQ8)
Classification: Main-belt Asteroid          SPK-ID: 2015257
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1699858952162406 7.2174e-08  
a 3.146440881542663 3.1924e-08 AU
q 2.611590311548656 2.2326e-07 AU
i 1.284364371451855 7.8962e-06 deg
node 7.945220248927094 0.00030205 deg
peri 323.9036221869981 0.00030239 deg
M 144.2482844393125 2.1706e-05 deg
tp 2456183.661973937635
(2012-Sep-13.16197394)
0.00012097 JED
period 2038.580150366832
5.58
3.1025e-05
8.494e-08
d
yr
n .1765934981439017 2.6876e-09 deg/d
Q 3.68129145153667 3.7351e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      687  
   data-arc span      8815 days (24.13 yr)  
   first obs. used      1990-09-15  
   last obs. used      2014-11-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53616  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:24:08  

Additional Information
 Earth MOID = 1.60183 AU 
 T_jup = 3.186 
[ 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 13.9 mag n/a MPO247498  

15257 (1990 RQ8)          Discovered 1990-Sep-15 by Debehogne, H. at La Silla (809)
Reference: 20000621/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 RQ8 = 1994 GE3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-24 06:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin