NOAA-18

NOAA-18
	Computer-generated image of NOAA-18 in orbit
Names	NOAA-N
Mission type	Weather
Operator	NOAA
COSPAR ID	2005-018A
SATCAT no.	28654
Mission duration	2 years (planned) ; 19 years, 5 months, 16 days (elapsed)
Spacecraft properties
Spacecraft type	TIROS
Bus	Advanced TIROS-N
Manufacturer	Lockheed Martin Space
Launch mass	2,232 kg (4,921 lb)
Dry mass	1479 kg
Dimensions	4.19 m (13.7 ft) of long; 1.88 m (6 ft 2 in) of diameter; 2.73 by 6.14 m (solar array)
Power	833 watts
Start of mission
Launch date	20 May 2005, 10:22:01 UTC
Rocket	Delta II 7320-10C; (Delta D312)
Launch site	Vandenberg, SLC-2W
Contractor	Lockheed Martin Space
Entered service	30 August 2005
Orbital parameters
Reference system	Geocentric orbit
Regime	Sun-synchronous orbit
Altitude	854 km (531 mi)
Inclination	98.74°
Period	102.12 minutes
AVHRR/3
Instruments
AVHRR/3	Advanced Very High Resolution Radiometer
HIRS/4	High Resolution Infrared Sounder
SEM-2	Space Environment Monitor
Argos DCS-2	Data Collection System
SARSAT	Search and Rescue Satellite-Aided Tracking System
SBUV/2	Solar Backscatter Ultraviolet Radiometer
AMSU-A	Advanced Microwave Sounding Unit
MHS	Microwave Humidity Sounder
	TIROS program ← NOAA-17 NOAA-19 →

NOAA-18, also known as NOAA-N before launch, is an operational, polar orbiting, weather satellite series (NOAA K-N) operated by the National Environmental Satellite Service (NESS) of the National Oceanic and Atmospheric Administration (NOAA). NOAA-18 also continued the series of Advanced TIROS-N (ATN) spacecraft begun with the launch of NOAA-8 (NOAA-E) in 1983 but with additional new and improved instrumentation over the NOAA A-M series and a new launch vehicle (Titan 23G). NOAA-18 is in an afternoon equator-crossing orbit and replaced NOAA-17 as the prime afternoon spacecraft.^[6]

^ Krebs, Gunter. "NOAA 18, 19 (NOAA N, N')". Gunter's Space Page. Retrieved 27 December 2020.
^ "Satellite: NOAA 18". World Meteorological Organization (WMO). 19 August 2020. Retrieved 5 January 2021.
^ "POES Operational Status". 22 March 2019. Retrieved 5 January 2021.
^ McDowell, Jonathan. "Launch Log". Jonathan's Space Report. Retrieved 5 January 2021.
^ Cite error: The named reference Trajectory was invoked but never defined (see the help page).
^ "Display: NOAA-18 2005-018A". NASA. 14 May 2020. Retrieved 5 January 2021. This article incorporates text from this source, which is in the public domain.

[1] Krebs, Gunter. "NOAA 18, 19 (NOAA N, N')". Gunter's Space Page. Retrieved 27 December 2020.

[WMO-2] "Satellite: NOAA 18". World Meteorological Organization (WMO). 19 August 2020. Retrieved 5 January 2021.

[OSPO-NOAA-3] "POES Operational Status". 22 March 2019. Retrieved 5 January 2021.

[launchlog-4] McDowell, Jonathan. "Launch Log". Jonathan's Space Report. Retrieved 5 January 2021.

[Trajectory-5] Cite error: The named reference Trajectory was invoked but never defined (see the help page).

[Display-6] "Display: NOAA-18 2005-018A". NASA. 14 May 2020. Retrieved 5 January 2021. This article incorporates text from this source, which is in the public domain.

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