The operational Microwave Surface and Precipitation Products System (MSPPS) provides near real-time surface precipitation products using antenna temperatures from the AMSU-A and AMSU-B/MHS instruments on board of NOAA's KLMNN' series polar orbiting satellites. The current operational MSPPS products include: rain rate, total precipitable water, cloud liquid water, snow cover, snow water equivalent, sea ice concentration, ice water path, land surface emissivity (23.8 GHz, 31.4 GHz, and 50.3 GHz), and land surface temperature. The operational MSPPS data are avaialble in HDF-EOS format, and some of products are also avaiable in BURF format. The MSPPS retrospective data can be acquired from the National Climatic Data Center and the Comprehensive Large Array-data Stewardship System.