Precipitation Processing System (PPS) servers will be down for extended maintenance from Tuesday, September 22nd through Thursday September 24th. During this time the PPS websites, the PMM Publisher API, and the GPM research data server (arthurhou) will be unavailable. The GPM near real-time server (jsimpson) and satellite data collection will not be affected. Click here to learn more.

GPM Calibration Continues

The Global Precipitation Measurement mission's Core Observatory is performing normally. Calibration of the Dual-frequency Precipitation Radar (DPR) and GPM Microwave Imager (GMI) continued.