+ 5b 45m = lehop return broken (as if oblique) between 5 and
6me
+6h 15m - many l-hop obliques; also 2-hop oblique going above
range of oscilloscope (1000 im)
+6h35m - 2-hop trace at éme at 900 km but no l-hop at 450 kn
+h 15m - obliques clear in 1-hop region; weak 2«hop obliques
+8h - last ionogram with marked peculiarities in F2 regio
+ 8h 45m - F2 getting normal, Fl contains peculiarities
+10h 15m ~ definitely normal again
“o illustrate how unusual are the ionograms in the vicinity of
Shot 1+ 5 hr 15 min, a series of recora. taken at the same time oOle
day (1000 hrs) during the week following Shot 1 is shown in Fig. 3
=
GGiiitrecen
See
a
sria at Era
ENTE
é
2
3
4
6
6
0
4
uc
2
eee aaneTFiO
j ag
3
6
6
10
14
Fige 3024 = Icnospheric Records ai Guam at 1000 hour's of Normal Days
Following Shot 1
54
SECRET
uc