NOAA-21

NOAA-21
	Artist's rendering of the NOAA-21 satellite in orbit.
Names	JPSS-2; Joint Polar Satellite System-2
Mission type	Weather
Operator	NOAA
COSPAR ID	2022-150A
SATCAT no.	54234
Website	http://www.jpss.noaa.gov/
Mission duration	7 years (planned) 1 year, 9 months and 10 days (elapsed)
Spacecraft properties
Spacecraft type	Joint Polar Satellite System
Bus	LEOStar-3
Manufacturer	Northrop Grumman Innovation Systems
Launch mass	2,930 kg (6,460 lb)
Start of mission
Launch date	10 November 2022, 09:49:00 UTC
Rocket	Atlas V 401
Launch site	Vandenberg, SLC-3E
Contractor	United Launch Alliance
Orbital parameters
Reference system	Geocentric orbit
Regime	Sun-synchronous orbit
Altitude	833 km
Inclination	98.80°
Period	102.00 minutes
Instruments
ATMS
Instruments
ATMS	Advanced Technology Microwave Sounder
CrIS	Cross-track Infrared Sounder
OMPS	Ozone Mapping and Profiler Suite
VIIRS	Visible Infrared Imaging Radiometer Suite
	; JPSS-2 Mission Insignia Large Strategic Science Missions; Earth Science Division ← NOAA-20 PACE → Joint Polar Satellite System ← NOAA-20 NOAA-22 →

This visualization illustrates how NOAA-20 orbit phasing and raising works relative to Suomi NPP, the notional way can be maneuvered a quarter-orbit along-track separation from NOAA-20 prior to launch of JPSS-2, and how a three-satellite constellation operates on a Sun-synchronous orbit node-crossing including sensor-swath footprints as the world turns below.

NOAA-21, designated JPSS-2 prior to launch,^[2] is the second of the United States National Oceanic and Atmospheric Administration (NOAA)'s latest generation of U.S. polar-orbiting, non-geosynchronous, environmental satellites called the Joint Polar Satellite System. NOAA-21 was launched on 10 November 2022^[1] and joined NOAA-20 and Suomi NPP in the same orbit.^[3] Circling the Earth from pole-to-pole, it will cross the equator about 14 times daily, providing full global coverage twice a day.^[4] It was launched with LOFTID.

NOAA-21 will provide operational continuity of satellite-based observations and products for NOAA Polar-Orbiting Environmental Satellites (POES) and Suomi NPP satellite and ground systems.^[4] The baseline plan for JPSS Ground System will be sustained to support NOAA-21, similar to NOAA-20. NOAA-21 hosts the following instruments: 1) VIIRS, 2) CrIS, 3) ATMS, and 4) OMPS. It was at one time intended to carry the Radiation Budget Instrument (RBI) but NASA canceled that project in 2018.^[5]

^ ^a ^b Gebhardt, Chris (10 November 2022). "Atlas rocket bids farewell to California as ULA readies for Vulcan". NASASpaceFlight. Retrieved 10 November 2022.
^ "JPSS-2 Has a New Name: NOAA-21". NESDIS. NOAA. 21 November 2022. Retrieved 22 November 2022. This article incorporates text from this source, which is in the public domain.
^ "NOAA's JPSS-2 Mission Has New Launch Date". NESDIS. NOAA. 31 May 2022. Retrieved 31 May 2022. This article incorporates text from this source, which is in the public domain.
^ ^a ^b Cite error: The named reference MissAndInst was invoked but never defined (see the help page).
^ "NASA Cancels Earth Science Sensor Set for 2021 Launch". NASA. 26 January 2018. Retrieved 14 February 2018. This article incorporates text from this source, which is in the public domain.

[nsf-20221110-1] Gebhardt, Chris (10 November 2022). "Atlas rocket bids farewell to California as ULA readies for Vulcan". NASASpaceFlight. Retrieved 10 November 2022.

[2] "JPSS-2 Has a New Name: NOAA-21". NESDIS. NOAA. 21 November 2022. Retrieved 22 November 2022. This article incorporates text from this source, which is in the public domain.

[noaa-20220531-3] "NOAA's JPSS-2 Mission Has New Launch Date". NESDIS. NOAA. 31 May 2022. Retrieved 31 May 2022. This article incorporates text from this source, which is in the public domain.

[MissAndInst-4] Cite error: The named reference MissAndInst was invoked but never defined (see the help page).

[RBInomore-5] "NASA Cancels Earth Science Sensor Set for 2021 Launch". NASA. 26 January 2018. Retrieved 14 February 2018. This article incorporates text from this source, which is in the public domain.

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