Outer Fix Arc

A semicircle, usually about a 50-70 mile radius from a meter fix, usually in high altitude, which is used by CTAS/ERAM to calculate Outer Fix Times and determine appropriate sector meter list assignments for aircraft on an established arrival route that will traverse the arc.

Source: Pilot Contoller Glossary (PCG)

#
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z