🛰️ SATELLITE · HISTORICAL RECORD
Telstar 1
Retired 1963Telstar 1 (NORAD 340, COSPAR 1962 A EPS 1) is a retired US satellite, withdrawn from service around 21 Feb 1963, launched on 10 Jul 1962. It was operated by ATT as part of the TSX programme. The spacecraft was built by BTL on the TSX bus, with a mass of 77 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1962
launched
1963
retired
64
years on orbit
77
kg mass
Lifecycle
Launched10 Jul 1962
Operational21 Feb 1963 · entered service
Retired21 Feb 1963 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID340
COSPAR1962 A EPS 1
TypeSatellite
OperatorATT
Country / StateUS
ManufacturerBTL
BusTSX
Mass77 kg
ProgrammeTSX
CategoryCOM
OrbitMEO (MEO)
Altitude956 × 5,634 km
Inclination44.8°
Frequently asked questions
What happened to Telstar 1?
Telstar 1 was retired from service around 21 Feb 1963 after launching in 1962. It is no longer operational but remains catalogued.
Who operated and built Telstar 1?
Telstar 1 was operated by ATT and built by BTL (US).
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.