NOAA-4

NOAA-4
	Illustration of the NOAA 4 (ITOS G) satellite
Mission type	Weather
Operator	NOAA / NASA
COSPAR ID	1974-089A
SATCAT no.	7529
Mission duration	4 years
Spacecraft properties
Launch mass	339.7 kilograms (749 lb)
Start of mission
Launch date	November 15, 1974, 17:11:00 UTC
Rocket	Delta 2310 D104
Launch site	Vandenberg SLC-2W
End of mission
Disposal	Decommissioned
Deactivated	November 18, 1978
Orbital parameters
Reference system	Geocentric
Regime	Sun-synchronous
Perigee altitude	1,451 kilometers (902 mi)
Apogee altitude	1,465 kilometers (910 mi)
Inclination	101.46 degrees
Period	114.91 minutes
Epoch	December 8, 2013, 12:44:30 UTC
Instruments
	VHRR, VTPR, SR
	ITOS ← NOAA-3 NOAA-5 →

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.^[5] NOAA-4 was launched on a Delta rocket on November 15, 1974. 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.

References

^ "NASA/NSSDC NOAA-4 spacecraft details". Retrieved October 20, 2008.
^ ^a ^b McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved December 8, 2013.
^ "NOAA 4 Satellite details 1974-089A NORAD 7529". N2YO. December 8, 2013. Retrieved December 8, 2013.
^ "WMO OSCAR | Satellite: NOAA-4". space.oscar.wmo.int. Retrieved March 20, 2024.
^ Wade, Mark. "ITOS". Encyclopedia Astronautica. Archived from the original on September 13, 2008. Retrieved October 20, 2008.

External links

NOAA-4 Satellite Position

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[1] "NASA/NSSDC NOAA-4 spacecraft details". Retrieved October 20, 2008.

[launchlog-2] McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved December 8, 2013.

[n2yo-3] "NOAA 4 Satellite details 1974-089A NORAD 7529". N2YO. December 8, 2013. Retrieved December 8, 2013.

[4] "WMO OSCAR | Satellite: NOAA-4". space.oscar.wmo.int. Retrieved March 20, 2024.

[5] Wade, Mark. "ITOS". Encyclopedia Astronautica. Archived from the original on September 13, 2008. Retrieved October 20, 2008.

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v t e TIROS satellites
TIROS	TIROS-1 TIROS-2 TIROS-3 TIROS-4 TIROS-5 TIROS-6 TIROS-7 TIROS-8 TIROS-9 TIROS-10
TOS	ESSA-1 ESSA-2 ESSA-3 ESSA-4 ESSA-5 ESSA-6 ESSA-7 ESSA-8 ESSA-9
ITOS	TIROS-M NOAA-1 ITOS-B NOAA-2 NOAA-3 NOAA-4 NOAA-5 ITOS-E
TIROS-N	TIROS-N NOAA-6 NOAA-B NOAA-7
Adv. TIROS-N	NOAA-8 NOAA-9 NOAA-10 NOAA-11 NOAA-12 NOAA-13 NOAA-14 NOAA-15 NOAA-16 NOAA-17 NOAA-18 NOAA-19