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This table summarizes the sonic and prop vane azimuths. Azimuth angles were shot relative to magnetic north with the datascope.

date

stn

whom

sonic (magnetic)

sonic Vazimuth (true)

prop (magnetic)

prop azimuth (true)

notes

6/29

1

Kurt, Rus

356.3, 356.7

267.8

92.3, 92.6

273.8

 

 

 

 

 

 

 

 

 

6/24

2

Gordon, Dan

357.0

268.3

93.3

274.6

https://wiki.ucar.edu/x/R7yTB

6/29

2

Kurt

357.0

268.3

93.3

274.6

good agreement with 6/24

 

 

 

 

 

 

 

 

6/29

3

Kurt

353.0

264.3

93.2

274.5

 

 

 

 

 

 

 

 

 

6/24

4

Gordon, Dan

354.3

265.6

92.6

273.9

https://wiki.ucar.edu/x/RLyTB

6/29

4

Kurt

353.5

264.8

88.9

270.2

prop disagrees (-3.7 deg) with 6/24

7/5

4

Dan, Kris

354.2

265.5

 

 

https://wiki.ucar.edu/x/_MWTB

Magnetic declination = 1.3 deg E

sonic: Vazimuth = azimuth(magnetic) + declination - 90
(Vazimuth is the direction that the sonic V axis is pointing)

prop: azimuth = azimuth(magnetic) + declination + 180

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