The late absorptive effects of Shot 4 observed at Site Elmer

(Fige 3.2, 03715 to 1600 hours) were found also in the data taken

there following Shots 1, 2, and 5, but not 3, as show in Table 3.1.
This table and the corresponding Table 3.2 for Rongerik were compiled

from a thorough examination of the scaled data.

Although there was;

of necessity, a certain amount of subjective interpretation (due to

definition of "normal" and to some erraticism of absorption), Tables
3a and 3.2 present a fairly accurate overall picture.

There appears

to have been striking similarity, for all four very large shots, in the
ending time of complete absorption at Rongerik and of the renewed absorption at Elmer, as well as in the time of return to normal minimum

frequencies at each location.

TABLE 3.1 ~ Absorption at Site Elmr
Shot
1

2

3

4
5

6

Time

Complete absorptio}

(180°)
0645

Began

Ended]

+ 17 min

+ 79m

n,

+ 31m

0630

Before shot

0610
0610

+ 10 min
Before shot

0620

0620

Renewed absorption

Bogan

+ 1b52m

No|separation

+ 48m
+ 59m

**Not know

(None)

+ 3h6m
+ 1h36m

No separation

Ended
*

Min Freqs.

Normal by
*

+6b46m

+12 h 30m

+ 6h46m
+ 8h6m

+ 9 b 50m
+ 9h 50m .

(None)

+2h5m

# Oh 32m-

**Not know

#* Equipment failed at plus 3 h 45 m - absorption still present,

*#* Photographic Failure =~ direct visual observation only.

TABLE 3.2 = Absorption at Rongerik

Shot
1

Time

(180°)
0645

2

0630

5

0610

3
4

6

0620
0610

0620

Complete absorption

Began

Ended

*+3 min

Before shot
"
a

*+1 min

"
®

Min. Freqs.

Normal by

+ 33 nin

+ 42 min

+20 min
+ 39 nin

+ 25 min
+ 45 nin

+38 min

+28 min

Station not operating

+ 53 min

+ 53 min

* Conditions before shot time were becoming poor.
25

SECRET

Select target paragraph3