On June 19, 2020, the multi-GNSS and multi-frequency uncalibrated phase delay (UPD) products provided by iGMAS Innovation Center was officially released for global users. At the same time, UPD product automatic generation management system began trial operation and the UPD estimation would be carried out at UTC 12:00 each day. The released UPD products include daily extra-wide-lane (EWL) and wide-lane (WL) UPDs & epoch-wisely narrow-lane (NL) UPD at 30-sec intervals of four systems: GPS, GLONASS, Galileo and BDS. More than one hundred reference stations from IGS and MGEX networks are selected for UPD estimation. See here for more details about our UPD product.

The Multi-GNSS UPD products can be found in here.