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5691 Fredwatson (1992 FD)
Classification: Main-belt Asteroid          SPK-ID: 2005691
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1164712398678873 7.384e-08  
a 2.333920030037727 1.372e-08 au
q 2.062085470386736 1.7115e-07 au
i 26.21479766224033 7.9931e-06 deg
node 175.8034170341979 1.3623e-05 deg
peri 34.58193812820904 2.856e-05 deg
M 199.0733023679533 2.658e-05 deg
tp 2457982.674236306612
(2017-Aug-17.17423631)
9.764e-05 JED
period 1302.349008301804
3.57
1.1484e-05
3.144e-08
d
yr
n .2764235989778359 2.4375e-09 deg/d
Q 2.605754589688718 1.5318e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1027  
   data-arc span      23446 days (64.19 yr)  
   first obs. used      1951-09-08  
   last obs. used      2015-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44492  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 15:50:57  

Additional Information
 Earth MOID = 1.08807 au 
 Jupiter MOID = 2.39172 au 
 T_jup = 3.423 
[ 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 13.2 mag n/a MPO256906  
rotation period rot_per 106.0 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Brinsfield, J.W. (2010) Minor Planet Bul. 37, 146-147.]

5691 Fredwatson           Discovered 1992 Mar. 26 by R. H. McNaught at Siding Spring Observatory.
Fred Garnett Watson (b. 1944) specializes in astronomical instrumentation and helped pioneer the use of fiber-optic spectroscopy. He is currently astronomer-in-charge of the Anglo-Australian Observatory. Through his frequent radio appearances and magazine columns, he has become a well-known public figure.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

Alternate Designations
 1992 FD = 1953 FX 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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