Intelsat II F-4

Overview

Intelsat II F-4

mission type	Communications
operator	Intelsat
cospar id	1967-094A‡R1R‡
satcat	2969‡R1R‡
mission duration	3 years planned 3 1/2 years achieved
spacecraft bus	HS-303A
spacecraft type	Intelsat II
manufacturer	Hughes
launch mass	162 kg
bol mass	86 kg
power	85 watts
launch date	September 28, 1967, 00:45:00 UTC‡R2R‡
launch rocket	Delta E1
launch site	Cape Canaveral LC-17B
launch contractor	NASA
deactivated	c. 1971
orbit epoch	February 8, 2014, 07:56:55 UTC‡R3R‡
orbit reference	Geocentric
orbit regime	Geosynchronous
orbit periapsis	35742 km
orbit apoapsis	35886 km
orbit inclination	6.00 degrees
orbit period	23.95 hours
orbit longitude	176° east (1967-70) 166° west (1971)
apsis	gee
programme	Intelsat II
previous mission	Intelsat II F-3
next mission	Intelsat III F-1 (Intelsat III)

Intelsat II F-4 was a communications satellite operated by Intelsat. Launched in 1967 it was operated in geostationary orbit at a longitude of 176 degrees east and later 166 degrees west.[4]

The fourth and last Intelsat II satellite to be launched, Intelsat II F-4 was built by Hughes Aircraft around the HS-303A satellite bus. It carried two transponders, which were powered by body-mounted solar cells generating 85 watts of power.[5] The spacecraft had a mass of 162 kg at launch, decreasing through expenditure of propellant to 86 kg by the beginning of its operational life.

Intelsat II F-4 was launched atop a Delta E1 rocket flying from Launch Complex 17B at the Cape Canaveral Air Force Station. The launch took place at 00:45:00 UTC on September 28, 1967, with the spacecraft entering a geosynchronous transfer orbit.[2] It fired an

References