NOAA-4, also known as ITOS-G was a weather satellite operated by the National Oceanic and Atmospheric Administration (NOAA).

[4] It was part of a series of satellites called ITOS, or improved TIROS.

The launch carried two other satellites: AMSAT-OSCAR 7 and Intasat.

[2] It remained operational for 1463 days until it was deactivated by NOAA on November 18, 1978.

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