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NOAA-4

Illustration of an ITOS series satellite |
| Organization |
NOAA/NASA |
| Mission type |
Weather satellite |
| Launch date |
15 November 1974 |
| Launch vehicle |
Delta 2310 |
| Launch site |
Vandenburg AFB |
| Mission duration |
15 November 1974 to 18 November 1978 |
| COSPAR ID |
1974-089A |
| Mass |
339.7 kilograms (749 lb) |
| Orbital elements |
| Inclination |
101.7° |
| Orbital period |
114.9 min |
| Apoapsis |
1,457 kilometres (905 mi) |
| Periapsis |
1,443 kilometres (897 mi) |
| Instruments |
| Main instruments |
VHRR, VTPR, SR |
| References |
NOAA-4, also known as ITOS-G was a weather satellite operated by the National Oceanic and Atmospheric Administration (NOAA). It was part of a series of satellites called ITOS, or improved TIROS.[2] NOAA-4 was launched on a Delta rocket on 15 November 1974. The launch carried two other satellites: AMSAT-OSCAR 7 and Intasat.[3] It remained operational for 1463 days until it was deactivated by NOAA on 18 November 1978.
[edit] References