Roto tes
KM
FI
ie
10.+1h 45M!
8.t1h IGM
14th 59M |
9.+1h 27M
12.4 2h 14M
800~
600
400
200-—
kM
=the
‘
600
200
2
3
4
6
s
10
4MCc-
Fige 306 = Ionospheric Records at Rongerik Following Shot 1 by 59 min
’ to 2 hr 14 min, Showing UnusualSporadic-E and Fl Development
Shot 2plus (see Fige 307)
39 min - first faint indicatim of Es (at 110 km just above
4, mc), very weak due tv absorptio
52 min - "spread" Es echoes, somewhat stronger but still
weakened by absorption
1 hr 13 min ~ many levels of Es
1 hr 34 min - stronger, multiple level Es, typical of halfhour period centered here
30
SECRET