🛰️ SATELLITE · HISTORICAL RECORD
ITOS H
Retired 1979ITOS H (NORAD 9057, COSPAR 1976-077A) is a retired US satellite, withdrawn from service around 16 Jul 1979, launched on 29 Jul 1976 on the ITOS H mission. It was operated by NOAA as part of the ITOS programme. The spacecraft was built by RCA on the Tiros M bus, with a mass of 340 kg. Historical record from Orbital Radar's satellite archive, cross-referenced with the live satellite catalogue.
1976
launched
1979
retired
50
years on orbit
340
kg mass
Lifecycle
Launched29 Jul 1976 · on the ITOS H mission
Operational16 Jul 1979 · entered service
Retired16 Jul 1979 · end of operational service
StatusOn orbit (not live-tracked)
Specifications
NORAD ID9057
COSPAR1976-077A
TypeSatellite
OperatorNOAA
Country / StateUS
ManufacturerRCA
BusTiros M
Mass340 kg
ProgrammeITOS
CategoryMET
OrbitLEO (LEO/S)
Altitude1,506 × 1,521 km
Inclination102.0°
Frequently asked questions
What happened to ITOS H?
ITOS H was retired from service around 16 Jul 1979 after launching in 1976. It is no longer operational but remains catalogued.
Who operated and built ITOS H?
ITOS H was operated by NOAA and built by RCA (US).
Historical record from the Orbital Radar satellite archive. Sources & methodology: data sources. Accessed 2026-09-06.