JPL GDGPS daily accumulated real-time POD attitude quaternions product

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 a time series of attitude quaternion components for healthy satellites in the GNSS constellation that are accumulated every minute throughout the day. The product is generated at JPL's Global Differential GPS Operations Centers in real-time. The data in this product can be concatenated with other daily products to provide larger coverage in time.

Data Access

JPL GDGPS daily accumulated real-time GPS POD attitude quaternions products are online:

https://cddis.nasa.gov/archive/gnss/products/realtime/jpl_gps

GPS products

https://cddis.nasa.gov/archive/gnss/products/realtime/jpl_glonass/

GLONASS products

https://cddis.nasa.gov/archive/gnss/products/realtime/jpl_galileo/

Galileo products

in subdirectories by year and day as follows:

YYYY/JJJ/SS/C_YYYY-MM-DD_JJJ_SSI_RRR.quat.gz

Code	Meaning
YYYY	4-digit year
JJJ	3-digit day of year
SS	2-character source indentifier (e.g., "dn" or "oc")
C	GNSS constellation: "G" = GPSDOI: 10.5067/GNSS/GDGPS_daily_POD_att_quats_gps_001 "R" = GLONASSDOI: 10.5067/GNSS/GDGPS_daily_POD_att_quats_glo_001 "E" = GalileoDOI: 10.5067/GNSS/GDGPS_daily_POD_att_quats_gal_001
MM	2-digit month
DD	2-digit day
I	1-digit refinement of product source identifier (e.g., "1", "2")
RRR	3-digit sampling interval in seconds (e.g., "001" for 1 sec data, "030" for 30 sec data, etc.)
gz	g-zipped file

Documentation

https://www.gdgps.net