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BYE"~UU/~ 

March 1"" 

PHO,TOGRAPHIC' EVALUATION\REPORT 

MISSION 4002 

6 - 8 SEPTEMBER 1963 

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This.docume,nt contoif)s information. reJ~lrh'.'_ 

Project. Gombit 

WARNING. 

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GAMBIT 

1 ECHNICAL PUBLICATION 

" 

PHOTOGRAPHIC EVALUATION REPORT 

MISSION 4002 

6 - 8 -SEPT~MBER 1963 

'. 

NPIUTP-8/64 

BY E-22181 /64 

March 1964 

NA TIONAL PHOTOGRAPHIC INTERPRETATION CENTER, 

I 

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TABLE Of CONTENTS 

P.\8oT't. PEI\L\KY CA\[ERA __ .. __ ... _ . __ .......... . 

NPIC/TP-8j64 

BYE-22181/M 

Page 

1 

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P\RT II. DE~S!TY CfL\RTS ........................ , -4 

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BYE-22181/64 

PART I. PRIMARY CAMERA 

\i~:,·<~i{)f.} \0: H')ll:! 

{ ':'im~"'r;l \0: fi-J 

Film T:q; .. ~.:' {,~Ol \,~n f:1t} ~:)IJUI 

1. Carhera slight ollt-uf-focu:-i 

area immediately 

adjact'D[ lO \h<:' edge containing rhv time tJ·ack. 

dose smd)' of this out-of'-focui; a rea ,-ostabllshes 

[he 'presence of double' llTIi1ges, although these 

are not 

union of culture ill near-opti rna.! elillOsures: }\ 

slight overall oUl-of-focus condition exists .in 

pas6cs D31 Land lJ32E. "This i;; at'tributcu 10 

failure of the camL,'ra to rdurn i..OloCUS followlpg 

the s.tep-focus experimqm ini,iated in pass 

'D31 E. Soft imagery resembling fm o'\lt-of-focus 

condition is presenl in isolall'd instances <?n pass 

DOS, frames 12, 13 and pass 1)24, frames 10, 11, 

The out-of-focus condition is associated' ,,{Ith 

"the from' 300 to 400 seconds or continu6u:.:: 

€ameraoperarion just pl'ior to [he fr.H11e$ 

dicateu. Transverse banding, caused by the 

:-;lj! \lid!!" !i./iO";'" (I H/O 

.·\p,?nutv; r ":).!)?,) 

I:'; li <'r: B & L ) 'Ill \,''lU!\. 

["dU;lWd ll~:' Fe, JII 

ancc;-; as film oscill 

l'I.:;version to normal fflm dd 

4 of JCm3 rk's presents., Ififphically, 

of film speed analysis for seleCted 

.passes 1)1.51:: and D24, 

3, The exposure is adequate a1-

though variations are apparent in stereo ~irs 

and radical E;xpOsure di fferences occur Wilhin 

f1;le long monoscopic ~trips: 

cl. Xreguency MarkeTS: the . Rl:¢. wt;ll 

defined despite some backg;roun~ flare. 

S. Fiducial Lines:lhe lilies ati: Well defined. , .1' _, ~ 

6. _Y_a_w_' . ___ :...' The exposm:e is adequate for 

-dttermination of atti~ude .W11'iations oot fa-lis off , ," .,. 

nO~iceabJy on the 

. the ends of Ihe 

side. In addition, 

c;U the time 

IOQpe]' replenishment action, is pl'es,mt. at. the 1 track side are vHm~~!it(~d. 

start and end of eachframeandoccursimermit-. 

• [emil' within long frames at 24" interv.als. 

Image distorrioJ1, induced by variations in film 

velocity, is, panicularly sever~ in ~he banded 

areas. Numerous, fine, contin~ous plus-density 

and minus-density streaks present throughout <i!, ~ , ", 

the film are possibly caused by a slit defect. 

Small, arced pauerns appear consistently on fhe 

titled, edge and inside the adjacent formac areas. 

These are. tentaLiv.e;ly' identified as camera 

roller cinch ma'rks. 

2. Image )vlotion CompenSation; Severe IMC 

error, associated with looper exhaustion and 

replenishment, occurs in the looper actimiareas. 

The error is confined within acceptable toler7. Light Leaks:;rone noted; 

None. nored. 

9. Pinholes; .. Pinholes are founo ~. ,random 

throughout the !ll~n. ' 

10. Abrasions and $cratcpes: A severe, 

era~induc:ed emulsion scnltch tSpteS0!1t .1040" 

from and parallel to the titled edge.Qf the .film. 

Camera roHer cinch marks,. appearingas grtitrps ,,, '~ 

of small, shallow arcs, found the tHIed 

edge and adjacent fo,rlIJar 

the f~lm, {';ompar~tively ininal' s~~a'tches imd 

abrasions are present at.random within the 

ferrnats but not in significa;~t Ilum~rs. SeVere 

. emulsion lifts degrade'nassD08. frames 21-24. 

I - . 

HUndt .. · 'lid. 

BYEMAN 

Cont"'} SoYst~only 

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NPICjTI'-8j64 

B1'L-22181/6-1 

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/ 

11.learing: None noted. 

12. W,llermarks; None nmed. 

13. Processing Streaks: Non,e nO[~d. 

14, .. Bli~.~_r_iEg and_<::£~~~lEi.~.8.; Minorcrimpsare 

prcsc[J[ Intl2rmi ((cOlly. No blisters are noted. 

IS. Foreign ':"latter: ],'he material is ~ree of 

foreign matter. 

.16. Contrast; low,.65% medium,. S% high . 

Terrain densities ~ere utilized' to determine 

com/rast' percemages. 

17. ]\pparcnt Resolution: Cood. The resolution' 

achieved in this missioriilranks with the best 

obtained in:sa~ellite phol()graphy to da~e. 

18. :\pparem Graininess: Fine. 

L 9. Photo QualHy: The ,photographic quality i's 

rated good despite the om,of-focu,s condilietls' 

noted in Item 1, Camera·Operation. Degradation 

~ is confined to the formal are~ immediately adjacent tQ 'the time track edge and to the two 

engineering passes which te [mina te the mission. 

20. Su~tability 'for PI: Good. The resolution 

and comparatively largescaleofthephotographY 

serve to enhanoe tQe imagerytoa degree se·idorn 

achieved by previous satellite reconnaissance 

missions. 

Remarks 

1. It is estimated that ground resolution if! the 

order of 6' -8' is r~adily obtainable throughout 

the _ rnis.sion, with ground resolutiol1 of 4'-5: 

obtainable in the areas of best photography. A 

rnensural error study was made on pass D15E, 

frame' 4. A DC-3 was -easily identified and 

seh3cted for the meaturemems. ,The following 

is a comparison of smaIl scalerneasuremen.ts, . 

derived from an engineering drawing' of a DC-3, . 

/-- . . / and measured values 

(Mann) comparator.,,· 

\hla,::';ured \'alu(~:-:: 

(f.I'(,I) 

'~9 

21 

. ]" 

J() 

]() 

'9 

utilizing a one micron 

Actual VaJu(>s 

(f(>(>1) 

:?6.6 

.lS.6 

14.~ 

n.1 

b.O 

b.O 

1.6 

.U) 

L:l 

. :1.6 

:1.] 

Measurements were af:so made on the 

smallest objects· identified in the Mission. The. 

objects, which are packing crates, have a 

. measure? value of3.2' by 4.0' .. 

2.' .;\lthough the exposure is rated ~dequate 

'(refer t6 It'e!TI3, Exposure), a sUght trend toward 

underexposure is detectable. Contributing factors are low sun angle and terra,in reflectJ.vity. 

3~ Frame start and end points 'are indetinitf 

due to the transients introduced by the film 

" drive system. "For example, th,Uast friune in 

,each pass terminates ~radual1Y. That is, the 

imagery "bleeds off" instead of tenninating' 

crisply.at a definable end-point. .'~ 

4. Examples of a' film speed analysis of sel~c1:ed fr ames o~ passes DIS E . and' J?24 ~re 

shown' following the terrail1 and limiting denT 

sity charts. 

5. Density readings were take'n on each pass 

. u~ing a Macbeth QuantaLog Densitometer, Model 

Ef' 1900, with an ET 20 attachment and an 0.5 

mm aperture. The values fO!; terrain' and' 

limit~ng ;Jensjties .for, D-Max and D-Min and 

Gro~s, i!C!g readings are, correlated below . 

- 2 -

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D'l:l8~ 011 

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D2:1 001 

D:l2 003 

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D:l1 005 

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D26 ,011 

'~27 0()2 

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mn£ OOt .. U:llE 005 

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D·Max Rang" Q':l:l,2.1Q 

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<\ H}rage D4.1ax 1.:32', 

:\ ""'faguI).Min, <1:39. .. I· 

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0,26 0.72 

0.:26. 1.153 

0.27 2.10 

0.35 0.97 

~ 1.38 

10.99 

.0.37 " 0.67' 

0.32 1.42 

(U8, 1.62 

.;.;~! NM 

(l.S:! 0.81 

·O.4fi 1.66: 

0.35 JAr) 

0.50 :U.9 

NM NM 

0.:30 1:45 

(U9 O.b] 

Oj5 O.9S 

0.52 1.53 

0.'12 LBO 

0.·14 0.73 

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o.is 1.12 ; 

0.26 1.64. 

0.5ii 1.6i 

0.41 1.63 

0.a4 lj9· 

0.31 .0~52 . 

\1.3& ~1.77 O.H" 1'.25 

0.32 .1.08 .. ' 

0.5.J. 1.3S 

0.93 1;98. 

·0.29 1.84. 

0.33 , O.~6 

0.41 l.Q6 

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0.26 t02 

0..10 i.o~ 

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0.25 

0.26 

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0.32 

0.33 .- 0,28 

0.;j6 

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0.31 

0.34 

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0':16 

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1.60 

1,92 

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2.06 

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