The Global Differential GPS (GDGPS) System is a complete, highly accurate, and extremely robust real-time GNSS monitoring and augmentation system.

Employing a large ground network of real-time reference receivers, innovative network architecture, and real-time data processing software, the GDGPS System provides sub-decimeter (<10 cm) positioning accuracy and sub-nanosecond time transfer accuracy anywhere in the world, on the ground, in the air, and in space, independent of local infrastructure.

A complete array of real-time GNSS state information, environmental data, and ancillary products are available in support of the GNSS Augmentation operations, Assisted GNSS (A-GNSS) services, situational assessment, and environmental monitoring - globally, uniformly, accurately, and reliably.

Full services are available for GPS, GLONASS, BeiDou, Galileo, QZSS, and NAVIC.

GDGPS has been providing high reliability position, navigation, and timing data services to industry and government operations since 2000. The GDGPS navigation technology underlie major global infrastructure, including the Wide Area Augmentation System (WAAS), and the next generation GPS Operational Control Segment (OCX).

Description

This product contains antenna phase center locations relative to the GNSS satellite's center of mass. The product is generated at JPL's Global Differential GPS Operations Centers.

Data Access

JPL GDGPS antenna phase center products are online:

Code	Meaning
YYYY	4-digit year
JJJ	3-digit day of year
SS	2-character source indentifier (e.g., "dn" or "oc")
MM	2-digit month
DD	2-digit day
C	GNSS constellation: "G" = GPSDOI: 10.5067/GNSS/GDGPS_ant_phase_centers_gps_001 "R" = GLONASSDOI: 10.5067/GNSS/GDGPS_ant_phase_centers_glo_001 "E" = GalileoDOI: 10.5067/GNSS/GDGPS_ant_phase_centers_gal_001
I	1-digit refinement of product source identifier (e.g., "1", "2")
gz	g-zipped file

Documentation

https://www.gdgps.net