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 ]  
20314 Johnharrison (1998 FN126)
Classification: Main-belt Asteroid          SPK-ID: 2020314
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ 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 .1604364240339131 5.7464e-08  
a 2.156334487740211 1.3615e-08 AU
q 1.810379893506172 1.2894e-07 AU
i 2.728647285032458 5.7506e-06 deg
node 292.5356060601436 0.00012038 deg
peri 1.297231681023294 0.00012148 deg
M 16.69434174774488 2.0152e-05 deg
tp 2456946.866094911045
(2014-Oct-16.36609491)
6.4709e-05 JED
period 1156.57185672697
3.17
1.0954e-05
2.999e-08
d
yr
n .3112647069061308 2.948e-09 deg/d
Q 2.50228908197425 1.5799e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      959  
   data-arc span      13982 days (38.28 yr)  
   first obs. used      1976-05-03  
   last obs. used      2014-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52224  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 14:13:05  

Additional Information
 Earth MOID = .795504 AU 
 T_jup = 3.682 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO257012  

20314 Johnharrison           Discovered 1998 Mar. 28 by J. Broughton at Reedy Creek Observatory.
John Harrison (1693-1776) was an English clockmaker who worked for decades on the problem of finding longitude at sea, developing a portable timepiece of unprecedented accuracy. This was a great step forward in improving maritime safety and enabled the charting of the world's oceans.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011230/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1998 FN126 = 1976 JR5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-26 09:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin