COMOR MAPPING, CHARTING, AND GEODESY WORKING GROUP MINUTES OF MEETING HELD IN ROOM 5B2830 CENTRAL INTELLIGENCE AGENCY, LANGLEY 1000-1200, 25 MAY 1966

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP79B01709A000500020010-5
• Release Decision: RIPPUB
• Original Classification: T
• Document Page Count: 7
• Document Creation Date: December 16, 2016
• Document Release Date: October 25, 2004
• Sequence Number: 10
• Publication Date: May 25, 1966
• Content Type: MIN

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COMOR MAPPING, CHARTING, AND GEODESY WORKING GROUP
Minutes of Meeting Held in Room 5B2830
Central Intelligence Agency, Langley
1000-1200, 25 May 1966
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Deputy Chairman
Mr. M. W. Matthews, OACSI
Mr. G. W. Wolf, ONI
Mr. A. M. Eldridge, AFNIN
Briefing on the Value of Information
1. The Chairman stated that CIA had a contract with the
1which was generally aimed toward establishing
some figures which might reflect the value of intelligence; included as
part of the analysis was the effect of locational uncertainities of targets.
He stated that this might be of interest to the Mapping, Charting and
Geodesy Working Group, and introduced of DDS&T/CIA,
as the agency representative on the project. indicated that
the proposed a contract to the CIA a few months
ago which would develop analysis data to express "the value of information".
Basically this was a war games exercise, and since the project had been in
effect only briefly, should be only a status report. introduced
DIA and NRO review(s)
completed.
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Limits of Useable Factors
2. 1 indicated that his concern about limits of useable
factors dealt with the criteria which would express the characteristics of
satellite photography needed for mapping, charting, and geodesy. He had
received these queries from CIA personnel involved repaying computer
programs for guiding satellite operations, further mentioned 25X1A
this query was part of the NRO operational activity, an was an updating
being done in line with the expanded programming capability soon to be
available for the KH-4 system. mentioned that the criteria 25X1A
presently being used by Army Ma.p Service in evaluating satellite collection
efforts for MC&G purposes was the most pertinent data now on hand. He
mentioned that criteria established last summer (see MCGWG-D-5, dated
26 July 1965, para 2) was the latest documentation, but that further detailed
criteria had been developed, particularly involving snow cover in Siberia.
After discussion, it was concluded that documentation of the KH-4 evaluation
criteria needed updating. It was concluded that AMS would update the criteria
now being used, and particular questions would be answered
with development of further criteria as needed. These criteria would be
reviewed with the DoD production activities, and the DIA would provide an
updated set of criteria to the MC&G Working Group, This action should be
completed in 3-5 weeks.
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Contribution of Overt Geodetic Systems in Meeting Worldde Geodetic
Position and Elevation Requirements
3. presented a statement which had been
prepared by DIA to reflect overt system geodetic accuracies and programs
from 1966-70, which would directly contribute to meeting world-wide
geodetic position and elevation requirements. This statement is attached
as Tab A to these i 4nutes, These accuracies are the objectives of the
programs described in Tab A. Production activities in Army and Air Force
can provide estimates of accuracies obtainable when the overt s stem
accuracies in Tab A are integrated with alternate 25X1A
systems, in various operational modes. stated that our
long range requirements paper showed that presentiIsystems 25X1A
integrated with the accuracies of Tab A would margina y meet the world-
wide geodetic requirement by 1970. Regardless of the consideration that
the geodetic deficiency is not of great magnitude, it does not mean that
R&D to support the geodetic requirement should be minimal, because it
may be possible through systems to realize a cost-effectiveness
tradeoff whereby achievi~racies better than required would permit
savings in other geodetic and geophysical programs. The accuracies and
the programs set forth in Tab A are subject to continuous review, and will
be updated as changes occur.
Increased Flexibility for Weather in Accomplishing KH-4 Photography
by Area Priorities
25X1A 4. of NRO reviewed again the discussion
that had taken place previously in the COMOR and MC&G Working Group,
whereby it was recognized that increased flexibility was needed by the NRO
to maximize the results obtainable. He stated that world-wide weather on
an entire year basis was being analyzed in order to obtain best results.
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that the cameras would be operated over highest priority areas at con-
siderably greater cloud cover prediction percentages and that all film
was intended to be used. It was generally agreed that the inc-reased
flexibility was needed, and that NRO would use good judgment consistent
with area priorities . Refined specific criteria for NRO guidance was not
indicated at this time, but the results of the next search missions would
be observed, and if there were significant imbalances observed in obtaining,
high priority coverage versus low priority coverage, the matter could be
reopened.
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Long Range MC&G Requirements for Image Sensor Acquisition Systems
25X1A 5. confirmed that the NRO briefing on the
application of R&D search-surveillance systems toward meeting long
range MC&G requirements was scheduled for 1000 hours on Friday,
27 May 1966.
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Chairman
COMOR MCG Working Group
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Copy 1 DIA TCO
2,3 DIA TCO
4, 5 Army TCO (Mr. Matthews)
6, 7 Navy TCO (Mr. Wolf)
8, 9 Air Force TCO (Mr. Eldridge)
10,11 CIA Member
12 NRO
13,14 NPIC
15 State TCO (Mr.
Moyer)
17 CIA COMOR Member
18,19 Ch/PWG
25-24 Ch/MCGWG
16 NSA TCO
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Tab A
Geodetic -Geophysical Accuracies and Program (1966-1970)
A. Accuracies (Expressed in Standard Error (1 Sigma))
FY66 FY68 FY70
1. Equatorial Radius 25m 15-18m 10m
2. Primary Net (Horizontal Position) - - 15m
3. Satellite Orbital Position Accura- 75m 30m 10-15m
cies Attributable to Uncertainties
in Our Knowledge of the Earth Gra-d-
tational. Potential
B. Programs
1. Geodetic and Geophysical programs have been designed to provide
world-wide data in support of the advanced weapons systems. Principal,_ pro-
grams which will contribute to improving the accuracy of the above-cited
parameters are the DoD Geodetic Satellite Program and the 5-Year Gravity
Program.
2. The Geodetic Satellite Program consists of observations with
both electronic and optical tracking systems to provide an improved equatorial
radius, precise geodetic locations on a, world-,Ade basis, and a better definition
of the earth's gravity potential. A S
ECOR equatorial belt of approximately
30 stations will be accomplished (luring FY67, to an accuracy of approximately
30 meters. By 1970, an accurate geometrical net of approximately 41 stations
will be determined by the BC-4 cameras which, together with new precise
ground distance measurements, will yield an accuracy of about 15 meters.
in 1968 and 69,- densification will be accomplished within the primary net,
primarily in Africa and South America, by SECOR and the PC-1000 cameras
to an accuracy of 20-30 meters. Densification within the U.. S.,, Canada, and the
Middle East has been, or is being, accomplished by the BC-4s to an accuracy
of 20-30 meters. Spacing of the primary BC-4 and SECOR networks will be
about 2000 miles. The densification points will be spaced at a distance of
about 800 miles. Earth-centered positions for selected locations will be
provided by Doppler and the PC-100CI cameras operating in an orbital mode.
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Tab A
3. The Doppler system, and to a lesser extent the PC-1000s,
will collect data to be used in a better definition of the earth's gravitational
potential. The data from the analysis of satellite orbits, along with land,
sea, and air gravity measurements,. will be used to reduce the uncertainties
that exist in the gravity potential. Presently these uncertainties cause
errors in determination of a satellite's position of about 75 meters. By
1970, when all data has been incorporated, this error should be around
10-15 meters.
4. The 5-Year Gravity Program will provide a global gravity
field by 1970, consisting of 50 x 50 mean anomalies to an accuracy of 7. 5mcs
in the Northern Hemisphere and 10? x 100 mean anomalies in the Southe.x'n
Hemisphere to an accuracy of l0mcs. The reconciliation of this surface
field with the field generated from satellites at 600 miles will provide the
increased confidence in orbital positons in the 1970 period.
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COMOR MAPPING, CHARTING, AND GEODESY 1 WORKING GROUP`
AGENDA
for
MCGWG-M-15
Room 5B2830, CIA Headquarters
1000, Wednesday, 18 May 66
1. Increased Flexibility for Weather in Accomplishing KH-4
Photography by Area Priorities (continuation of same item
discussed in 2 May meeting).
2. Contribution of Overt Geodetic Systemsin Meeting World-wide
Geodetic Position and Elevation Requirements.
3. Any matters affecting Long Range MC&G Requirements fpr Image
Sensor Acquisition Systems that should be discussed prior to the
NRO briefing.
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4. Limits of Usable Factors for MC&G.
25X1A Copy 1 DIA TCO
2,3 DIA TCO
4, 5 Army TCO (Mr. Matthews)"'
6, 7 Navy TCO (Mr. Wolf) ,
25X1A 8, 9 Air Force TCO (Mr. Eldridge
10, 11 CIA Member
25X1 A 12 NRo
13,14 NPI C
25X1 A 15 State TCO (Mr.
16 NSA TCO
Moyer)
17 CIA COMOR Member
18,19 Ch/PWG -
20-24 Ch/MCGWG
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