GEOGRAPHICAL SURVEY OFFICE OF SWEDEN NO A 34 
27 
FornrA7:2 
Form for computing the x- and y-deviations inA7 autographs 
Organization: 
Checked by: 
Grid: 
RAK 
Date: 
6.10.65 
-Kaasila 
Instrument: A7- 515 
Computed by: Kaasila 
Projector: Left 
51L 
Location and notation 
Scale - 
z 
Base 0 mm 
dx' = x 
a » 100 mm 
in the projector scale 
measured X given 
. y in the projector scale 
measured given 
dt <= correction of the x-deviation 
dy< = y r 
dt «= co 
dl = correction of the y-deviation 
s = standard error of dt 
t 
s.^ = standard error of dl