table4.168

SP-4012 NASA HISTORICAL DATA BOOK: VOLUME III
PROGRAMS AND PROJECTS 1969-1978

Table 4-168. TOPO 1 Characteristics

Also called

Topographic Satellite

Date of launch (location)

Apr. 8, 1970 (WTR)

Launch vehicle

Thorad-Agena D

Weight (kg)

18

Shape

Rectangular

Dimensions (in)

0.36 x 0.30 x 0.23

Power source

Solar cells plus NiCd battery

NASA role

Launch vehicle (reimbursable); launched with Nimbus 4 weather satellite.

Cooperating organizations

NASA and U.S. Army Topographic Command, Off. of Chief of Engineers

Results

Investigate a new technique for accurate real-time determination of position on the earth's surface for mapping purposes.

Instruments

Electronic ranging equipment

Results

Successful; first of a series that would utilize tracking equipment and spacecraft from the Army's Geodetic SECOR (Sequential Collation of Range) Program.

Reference: NASA, "Nimbus 4 Mission Operations Report," S-604-70-04, Apr. 6, 1970.

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Also called	Topographic Satellite
Date of launch (location)	Apr. 8, 1970 (WTR)
Launch vehicle	Thorad-Agena D
Weight (kg)	18
Shape	Rectangular
Dimensions (in)	0.36 x 0.30 x 0.23
Power source	Solar cells plus NiCd battery
NASA role	Launch vehicle (reimbursable); launched with Nimbus 4 weather satellite.
Cooperating organizations	NASA and U.S. Army Topographic Command, Off. of Chief of Engineers
Results	Investigate a new technique for accurate real-time determination of position on the earth's surface for mapping purposes.
Instruments	Electronic ranging equipment
Results	Successful; first of a series that would utilize tracking equipment and spacecraft from the Army's Geodetic SECOR (Sequential Collation of Range) Program.