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

 

Table 4-106. Intelsat-III F-5 Characteristics

 

Date of launch (location):

July 25, 1969 (ETR)

Launch vehicle:

Thrust-Augmented Long-Tank Thor-Delta

Weight (kg):

146 (orbital)

Shape:

Cylindrical with an antenna mounted on one end

Dimensions (m):

1.04 height (1.98 with antenna)

1.42 diameter

Power source:

Solar cells plus NiCd batteries

NASA's role:

Launch vehicle and ground support (reimbursable)

Cooperating organizations:

NASA and Communications Satellite Corporation, representing the International Telecommunications Satellite Consortium (Intelsat)

Prime contractor:

TRW Systems Group

Objectives:

Commercial communications support for five years from synchronous orbit above the equator (Atlantic link); capable of 1200 voice circuits or 4 TV channels; replace Intelsat-III F-2.

Results:

Unsuccessful; launch vehicle third stage malfunctioned; satellite was not placed in the proper orbit.

 

Reference: NASA, "Intelsat III F-5 Mission Operations Report," S-633-69-05, July 8, 1969.

 


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