Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20.
Suomi NPP data announcement
NASA’s Tropical Rainfall Measuring Mission (TRMM) monitors the distribution and variability of tropical precipitation and how these rainfall patterns affect Earth's weather and climate.
Type
Earth Observation Satellite
Launch
Nov. 27, 1997
Objective
Measure monthly and seasonal rainfall over the global tropics and subtropics
Instruments Aboard TRMM
| Instrument Name | Operational Date(s) | Spectral Resolution | Type of Instrument |
|---|---|---|---|
| Clouds and Earth's Radiant Energy System (CERES Instruments) | November 27, 1997 - present |
|
Spectrometers/Radiometers |
| Lightning Imaging Sensor (LIS) | Narrow-band filter centered at 777 nm |
Spectrometer/Radiometer | |
| Operational Linescan System (OLS) | Spectrometers/Radiometers | ||
| Precipitation Radar | Profiler/Sounders | ||
| Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) | Spectrometers/Radiometers | ||
| Visible and Infrared Scanner (VIRS) (VIRS) | 0.63µm; 1.6µm; 3.75µm; 10.8µm and 12µm |
Spectrometers/Radiometers |
Frequently Asked Questions
Earthdata Forum
Our online forum provides a space for users to browse thousands of FAQs about research needs, data, and data applications. You can also submit new questions for our experts to answer.
Submit Questions to Earthdata Forumand View Expert Responses