From: Multi-instrumented observations of the equatorial F-region during June solstice: large-scale wave structures and spread-F
Position
Azimuth (deg.)
Elevation (deg.)
1
−90
69.2
2
74.2
3
80.4
4
85.2
5
0
90.0
6
90
7
8
74.0
9
10
64.4