oz
2-53
suffice to check and revise current theory and provide a
reasonably comprehensive understanding of high altitude fireball phenomenology.
2.2.9 Addendum.
Program 17. Teak, Orang?
A variety of electromagnetic sisnals were recorded on
both shots.
No analysis has been atteipted yet.
2.2.2 and 2.2.10 Addendum.
Programs 10 and 18, Orange
Objectives.
Objectives were the same as for Teak.
After failure to
obtain early fireball core data from Teak shot, an attempt ~s-
made to obtain such data from Orang? althouzh one had to éxpe.
very high reaction rates,
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:
Many instruments were vwrerefore pointed at
Theburst location and were set for highest possible time
resolution.
Unfortunately the shot was fired under deteriora
ting weather conditions and at the critical time the recommendation of the responsible program officer to hold or to
delay the shot was not accepted, (much to the astonishment of
the projects, which had been made to believe that clear visio:
from Johnston Island was manfdatory for the shot).
At shot
time the altostratus cover over the Island was 8/10 (not 5/10
as officially reported for the Johnston Island area), resultir
in a mean diffuse optical transmission of only 6%; the transmission for the collimated observation channels was even less.
Instrument and station performance record was good.
egpienid
Not one
single NRL operated instrument failed; at the LASL end 57
oscilloscope channels recorded out of a possible 61 and Bowen
and spectrograph channels operated.
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PACE o>