🛰️ SATELLITE · HISTORICAL RECORD
TOS E
Retired 1970TOS E (NORAD 3345, COSPAR 1968-069A) is a retired US satellite, withdrawn from service around 10 Mar 1970, launched on 16 Aug 1968 on the TOS E mission. It was operated by ESSA as part of the TOS programme. The spacecraft was built by RCA on the Tiros I bus, with a mass of 154 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1968
launched
1970
retired
58
years on orbit
154
kg mass
Lifecycle
Launched16 Aug 1968 · on the TOS E mission
Operational10 Mar 1970 · entered service
Retired10 Mar 1970 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID3345
COSPAR1968-069A
TypeSatellite
OperatorESSA
Country / StateUS
ManufacturerRCA
BusTiros I
Mass154 kg
ProgrammeTOS
CategoryMET
OrbitLEO (LEO/S)
Altitude1,431 × 1,474 km
Inclination101.7°
Frequently asked questions
What happened to TOS E?
TOS E was retired from service around 10 Mar 1970 after launching in 1968. It is no longer operational but remains catalogued.
Who operated and built TOS E?
TOS E was operated by ESSA and built by RCA (US).
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.