Just been looking for more info - this is a fascinating subject - here's a pic of the Totem II blast:
Info with the image is:
" Test:T2; Date:October 14 1953;
Operation:Totem;
Site:Emu Field, South Australia;
Detonation:Tower Shot, altitude - 100ft(31m); Yield:8kt; Type:Fission;
___Basically no info. This was the third nuclear test of UK. Max predicted yield 10Kt, min. predicted yield .02 kt, most likely eswtimate was 2-3 kt. T2 actually yielded 8 kt."
Source
And here's the first one:
Info:
"Test:T1; Date:October 14 1953;
Operation:Totem;
Site:Emu Field, South Australia;
Detonation:Tower Shot, altitude - 100ft(31m); Yield:10kt; Type:Fission"
Same source as first image.