STAFF STUDY ON REQUIREMENT FOR COMPARATORS

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A002100040049-2
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 3
• Document Creation Date: December 28, 2016
• Document Release Date: December 28, 2001
• Sequence Number: 49
• Publication Date: March 30, 1962
• Content Type: MF

Approved For Release 2002/06/17 CJA-RDP78B04747A002100040049-2
S HAIaL `T-
FYIIOLE CHAL dELS
ONLY
M TORAT CfM FOR: Chief, TechalrAl Plans and Developient Stafff, NPTO
SUBJECT: Staff Study on RequLvmont for Comparators
?
TID is in urgent need for two instruments to measure the
horizon exposers on the =MMS togry.
25X1A
0
2. Fact 3
a. The present instruments used for horizon measurements,
30 :arch 1962
Tcs-11663-62- I
are inadequate and
b. :?yenned input schedules will greatly increase the
volume of horizon measurements wired.
lack suf:Eicient accuracy.
namely the
3. Discussion of the Facts
a. '.1e ere not 25X1 A
precise Measuring instruments and were never intended to be
used as 1.hey have been used in TID. These instruments were
original;,y in use in FAD and were pulled out in desperation
and boot strapped into production use. The useaof these in-
struments, in the past were Justified by the fact that horizons
obtained in the early missiat s were difficult to define so that
the accuracy of these instruments was not a prime problem.
With the excellent horizons obtained as a result of improve-
ments made, as evidenced in the last mission, it is now
impossib7.e to tolerate the r measuring capabilities of the
25X1A
b. The increased volume of photography scheduled makes
it mandatory to consider instruments with increased accuracy,
capability and operator comfort. It be noted that measuring
horizons day after day is a very exhausting task. The
DECLASS REVIEW by NIMA/DOD
Approved For Release 2002/06/17 : CIA-RDP78BO4747AO02100040049-2
 CIRp
Approved For ase 2002/06/1 Z._i~~`?nLP78B0474772100040049-2
91 pis
0
25X1A
stereoscopic capaai ." ' of the SH-4 sygt t depends refinement
in the attiti4e par tern of both camerae, necessitating
horizon measurements net"oair a the forward but also on the
art cameras.
? . The problem that TIb is confronted with has been
discl:ssed with T DS. Of several COfl * to rs 25X1 A
inveetigsted, one octwred by the
best fulfills TIC re ,re xta. This inetxu=Vt is of pr
reliability and can be d vered on a timely basis.
1