longitude. See Request at 1. Midport's current license application proposes to operate at essentially the same coordinates: 41-39-21.0 N. latitude and 83-31-52.0 W. longitude. See FCC File No. 0001183563. 47 C.F.R. § 90.273. See Request at 1. See 47 C.F.R. § 90.273(c)-(d). The geographic center coordinates for Detroit are 42-19-48.1 N. latitude and 83-02-56.7 W. longitude. See 47 C.F.R. § 90.473(c). See 47 C.F.R. § 90.279(a) See Request at 2. Id. Midport proposes to operate mobile units within a 20-mile (32-kilometer) radius of coordinates very close to Detroit's geographic center (i.e., 42-18-48.1 N. latitude and 83-02-56.7 W. longitude). See FCC File No. 0001183563. See Request at 1-2. See Request at 2. Id., citing Amendment of Part 90 of the Commission's Rules