2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
  1. Home
  2. Launches
  3. 1975
  4. 1975-042
// orbital launch

INTELSAT IV F1

Atlas SLV-3D Centaur launch from Cape Canaveral & Kennedy (United States) on May 22, 1975, carrying 1 payload. GCAT records the launch as a success.

May 22, 1975 · 22:04 UTCLaunch 1975-042Launch no. 1,690 in the log
SpaceportCape Canaveral & Kennedypad LC36A
OutcomeSuccess
Launch agencyNASA LeRCUnited States

Flight

Date and time (UTC)
May 22, 1975, 22:04
Launch designation
1975-042
Mission
INTELSAT IV F1
Flight name
Intelsat 4 F-1
Vehicle flight ID
AC-35

Orbit and payload

Initial apogee
36,701 km
Payload mass to orbit
1.4 t
Payloads
1
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
INTELSAT IV F11975-042ANORAD 7815INTELSATCommunications664 kgRenamed · Jul 18, 2001

Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.