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Description

Version 08 is the current version of the data set. Older versions will no longer be available and have been superseded by Version 08.

1CATMS contains common calibrated brightness temperature from the ATMS passive microwave instrument flown on the Suomi NPP satellite and JPSS satellites. ATMS is approximatly a combination of the AMSU-A channels and the MHS channels, to the total of 22 channels. ATMS rotates 3 scans per 8 seconds. 1CATMS contains 4 swaths, one for each band K, A(Ka), W, and G.
ATMS geometric footprints are: 75km x 75km (23-32GHz), 32km x 32km (50-90GHz), 16km x 16km (165-183GHz). GPM Project cross-calibrates channels at spatial sampling: 23.8, 31.4, 88.2, 165, and 183 GHz at 16x16 km.

Product Summary

Platforms
NOAA-20
Instruments
ATMS
Spatial Extent

N: 90 S: -90 E: 180 W: -180

Location
TROPICS
Coordinate System
GEODETIC
Granule Spatial Representation
GEODETIC
Temporal Extent
2017-11-29 to Present
Data Partner
Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Terrestrial Information Systems Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA (NASA/GSFC/SED/ESD/TISL/GESDI
Concept ID
C4054954664-GES_DISC
Data State
ACTIVE
Number of Files/Granules
284
Processing Level
1
Published
Updated
Science Keywords
Atmospheric Water Vapor ,
Precipitation

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Precipitation Processing System (PPS) at NASA GSFC. (2026). GPM ATMS on NOAA-20 Common Calibrated Brightness Temperatures L1C 1.5 hours 17 km V08 [Data set]. NASA Goddard Earth Sciences Data and Information Services Center. https://doi.org/10.5067/GPM/ATMS/NOAA20/1C/08 Date Accessed: 2026-03-30

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