Reproduced from the holdings of the National Archives
~
PROBABLE ERROR COMPUTATION” Reson
DISTANCE
Discrepancy
between
2
Measurements of Section
Allow
20°dist. in Am.
North Base—7A
F
243.4274
B 243.4274
abre
Probabie
Actuol
Maximum
Difference
m
m
3
Error
0.6¢75V- 2
| Section
m
20 ¥ -2434274
0.0098
0.0000
0.6745 x 0.000
0O.000/
20 Y 6498766
0O.O0/6f
0.0074
0.6795 x 0.0037
O.0025
0.0000
7A — 20
F 6498803
B
20~— 34 B
6¢4 9.8729 —
0.0074
F
699.995/
8
700.0026
:
|
:
|
|
20 Y.6999988
0.0/67
0.0075
0.6745 x 0.00375
O0025
CO Y .4499832
0. O/ 34.
2006
0.6745 *% 0.0008
0.0005
20 Y.580 9796
0.0/52
OOOS8
\0.6745x0.00275|
0.0019
0.0075
34B~43C
F 449.9824
B 449.9840
YSAYVN 8B SSW IOH
MEASURED
SYASNISNS
SECTION
43C — Runit
F 580.9769
B 580.9824
0.0055
O.000Lr
F
0.0025"
0.0025"
B
Z=
GO0000/637
Y= 0.00405 M
5
2624.262/
2624.2693
0.0072 M
0.000 5°
0.0019"
Actual
difference
Probable
error
0.0072 = 1:36448!
0.00905 =
1:647967
OvS'ON BOF
0.00 /6