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] 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.

TIROS-M
Spacecraft properties
TIROS-M

Mission type	Weather
Operator	ESSA / NASA
COSPAR ID	1970-008A[1]
SATCAT no.	4320


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

References

"NASA/NSSDC TIROS-M spacecraft details". Retrieved January 6, 2018.
McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved June 6, 2018.
Wade, Mark. "ITOS". Encyclopedia Astronautica. Retrieved June 6, 2018.

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

← 1969 · Orbital launches in 1970 · 1971 →

Payloads are separated by bullets ( · ), launches by pipes ( | ). Crewed flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in (brackets).

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