ACCURACY DETERMINATION OF (Sanitized) LIGHT TABLE # 2

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A001400040013-9
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: February 8, 2002
• Sequence Number: 13
• Publication Date: September 22, 1966
• Content Type: REPORT

Approved For Releas /411f t TE 1_r 78BO4747AO01400040013-9
22 September 1966
ACCURACY DETERMINATION OF
1. Date. 21 SeDtemhP,
IGHT TABLE # 2
- - v - ud cor
3. Test Grid: NBS # 5391 (line width
Warm Up Time: 4 hours
(Grid in contact with table)
5. Alignment Method. Edge Matching
6. Microscope:
(with cross alr ira eyepiece with
line width of
7. Magnification: 60X (lOX eyepieces)
Declass Review by NIMA / DOD
Grid Line
39
35
30
25
20
15
10
9
8
7
6
5
4
3
2
1
0
Reading on Micrometer
0.843
4.843
9.844
14. 844
19.845
24.846
29.846
30.846
31.846
32.846
33.846
34.846
35.846
36.846
37.846
38.846
39.846
Reading on Micrometer
0.155
4.155
9.155
14.155
19.155
24.157
29.158
30.158
31.157
32.156
33.156
34.156
35.157
36.157
37.157
38.157
39.156
These readings were found b
reading- by the statistical method of taking
at recorded least 5 reading appe individual
a _ , g_ at each grid line ; r,,;
re
99730-4 Approved F r lease
CONFIDE~VTIA
xCP2deal Purr ,
1uPe,raiiF
25X1A
25X1A
25X1A
25X1A
 25X1A
Approved For Release 2002/06/17 : CIA-RDP78BO4747AO01400040013-9
JH--I--r-~-f
- I III
- i f - I i t
r I I
I
I I I I I! I
{-~~r-!-1- ~---+ I I I I I I '-~__,_
I r I i
I I
I I I ~ ~ I '. r I I
-_ I
I
I I ~ ~
1
1
T
-
I r
I Ia
I I I I
I
I I
I I I
I I
I
I I I
I I
I I
I
~I
r I
I I
I Y
I I
I I I
. 25X1A
Approved For Release 2002/06/17: CIA-RDP78BO4747AO01400040013-9