JOHNSTON ATOLL
wenn
F &SNO.
TITLE
01072
Optical Station (Atop Building 20) - Subtask A804
USER
STRUCTURE /FACILITY NO.
SCIENTIFIC
TC
FUNDING
AGENCY
JTF -8
None
($000)
BoD
91-3-17
ENGR
PROC
FOD
CONST
TOTAL
FURN
445.8
510.4
5.7
14.2
14,2
460.0
524.6
6.1
234.2
240. 3
6.1
694. 2
764.9
PRE-GO
MILCON
Prior Cost
CRO7-64
CRO7-65
FY 69
CRO 69-8
SCIENTIFIC STATION NO.
SUBTOTAL
64.6
64.6
5.7
DASA/
RDT&E
EAO-1106
PRE-GO
Prior Cost
4101-61
TOTAL
64. 6
5.7
PRIOR YEARS
ENGINEERING. Completed.
Drawings:
91-3-17-Al thru A8
91-3-17-S1 thru S5
91-3-17-Ml1 thru M15
91-3-17-W1l
91-3-17-El thru E5
PROCUREMENT
Completed.
CONSTRUCTION
The Optical Station (completed in 1966) is an "'U'' shaped steel
frame structure with metal insulated siding and composition roof.
This struc-
ture is located at the north end, atop Building 20, and contains approximately
7500 square feet of space for spectrograph mounts, instrument maintenance,
camera mounts; film handling and analysis, and administrative purposes.
The camera and spectrographic areas, approximately 20 x 40-ft. and 40 x 40-ft.,
respectively, are provided with a movable roof which permits unobstructed sight
down to a minimum of 10° above the horizontal to the south, east and west. A
clear line-of-sight is provided between each spectrograph and an azimuth mark
which, preferably, will be located on Hikina Island.
Hydraulic camera mounts permit mounting of cameras and spectrographs to a
predetermined position. These mounts are capable of adjustments to +t 0. 1°
in azimuth.
1-66
VOLI
April 1969