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

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1160751772365429 2.5205e-08  
a 2.334121501152404 8.2032e-09 au
q 2.063187934214513 6.0531e-08 au
i 26.20786605746564 1.9341e-06 deg
node 175.7776559199557 2.3594e-06 deg
peri 34.44392037833679 8.3139e-06 deg
M 336.7407888042653 9.7324e-06 deg
tp 2459284.654258377766
(2021-Mar-11.15425838)
3.5406e-05 TDB
period 1302.517646064941
3.57
6.8665e-06
1.88e-08
d
yr
n .2763878102439551 1.457e-09 deg/d
Q 2.605055068090294 9.1554e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2551  
   data-arc span      25399 days (69.54 yr)  
   first obs. used      1951-09-08  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40948  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 22:26:08  

Additional Information
 Earth MOID = 1.08849 au 
 Jupiter MOID = 2.38839 au 
 T_jup = 3.423 
[ 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 13.39   n/a MPCxxxxx  
diameter diameter 5.517 km 0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 106.0 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Brinsfield, J.W. (2010) Minor Planet Bull. 37, 146-147.]
geometric albedo albedo 0.421   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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