Payload (satellite)
GPM-CORE
GPM-CORE is a satellite launched 2014-02-27 by Japan.
About

Global Precipitation Measurement (GPM) is a joint satellite mission between JAXA and NASA as well as other international space agencies to make frequent observations of Earth's precipitation from orbit. It is part of NASA's Earth Systematic Missions program and works with a satellite constellation to provide full global coverage. The project provides global precipitation maps to assist researchers in improving the forecasting of extreme events, studying global climate, and adding to current capabilities for using such satellite data to benefit society. GPM builds on the notable successes of the Tropical Rainfall Measuring Mission (TRMM), which was also a joint NASA-JAXA activity.
Right now
Dotted: where it has been. Solid: the next orbit and a half. Orbit data from CelesTrak, map from NASA Blue Marble. All credits