NOAA 11

Also called NOAA H

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General

Designation	19531 / 88089A
Launch date	24 Sep 1988
Country of origin	United States
Mission	Meteorology
Perigee/Apogee	814/856 km
Inclination	99.059°
Period	101.9 min
Launch vehicle	Atlas E
Launch site	Vandenberg

Studies ozone

The attitude control subsystem lost two of its four gyros and was operated successfully with specialized onboard software. Several instruments failed in 1994 (AVHRR, SBUV/2, etc.) It was reactivedted to provide HIRS/2 after the partial failure of this instrument on NOAA 12

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End of life

Out of service	Mar 1995 but reactivated in May 1997, decommissioned in June 2004
Cause	replaced by NOAA 14

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External resources

sat-index articles

Technical data

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Specifications
Payload

APT downlink freq.	137.620 MHz (inoperative)
HRPT downlink freq.	1707.0 MHz
Beacon	137.770 MHz (inoperative?)

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