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JPL Small-Body Database Browser
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20314 Johnharrison (1998 FN126)
Classification: Main-belt Asteroid          SPK-ID: 2020314
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1598544518349932 3.1236e-08  
a 2.15652594295326 6.5715e-09 au
q 1.811795670474525 6.8871e-08 au
i 2.727768441818366 3.478e-06 deg
node 292.4564358272543 9.5254e-05 deg
peri 1.32118765987651 9.6773e-05 deg
M 154.750377238764 1.9015e-05 deg
tp 2458103.267310026283
(2017-Dec-15.76731003)
6.0275e-05 TDB
period 1156.725893561821
3.17
5.2873e-06
1.448e-08
d
yr
n .3112232569563032 1.4226e-09 deg/d
Q 2.501256215431995 7.622e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1601  
   data-arc span      15685 days (42.94 yr)  
   first obs. used      1976-05-03  
   last obs. used      2019-04-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50109  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 23:39:32  

Additional Information
 Earth MOID = .795001 au 
 Jupiter MOID = 2.67139 au 
 T_jup = 3.682 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO416924  
diameter diameter 3.750 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.239   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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