TIROS-M

TIROS-M, also known as ITOS-1 was a weather satellite operated by the Environmental Science Services Administration (ESSA). It was part of a series of satellites called ITOS, or improved TIROS.^[3][4] TIROS-M was launched on a Delta rocket on January 23, 1970. The launch carried one other satellite, Australis-OSCAR 5.^[2] It was deactivated on June 18, 1971.

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  TIROS M diagram
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  TIROS M mechanical and thermal test model
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  Image of Hurricane Ella prior to its landfall in northeast Mexico from September 11, 1970, taken by ITOS-1
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  Sea-surface temperature map of the Southern Hemisphere created from ITOS data from September 6–8, 1970

TIROS-M

TIROS-M
Mission type	Weather
Operator	ESSA / NASA
COSPAR ID	1970-008A[1]
SATCAT no.	4320
Spacecraft properties
Manufacturer	RCA Astro
Launch mass	309 kilograms (681 lb)
Start of mission
Launch date	January 23, 1970, 11:31 (1970-01-23UTC11:31Z) UTC[2]
Rocket	Delta-N6
Launch site	Vandenberg SLC-2W
End of mission
Disposal	Decommissioned
Deactivated	June 18, 1971 (1971-06-19)
Orbital parameters
Reference system	Geocentric
Regime	Low Earth Sun-synchronous
Perigee altitude	1,432 kilometers (890 mi)
Apogee altitude	1,478 kilometers (918 mi)
Inclination	101.99 degrees
Period	115 minutes
Epoch	January 23, 1971
ITOS ← ESSA-9 TOS NOAA-1 →