CSRC Data Portal

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General

CSRC Data Portal

Introduction: Resources available from the CSRC Data Portal are listed below. Use the links to the left to jump to your section of interest. These categories contain the information needed for your California GPS projects.
Note 1: many of these require a four character site code or NGS PID to view or obtain information.
Note 2: links will open in a new or different browser window

RINEX Data: Obtain GPS RINEX observation files for sites of interest

Data Browser Select the sites/days for which RINEX files are required

Site Metadata: View information about GPS sites, such as antenna heights and equipment types

Site Information Manager (SIM) Retrieve any descriptive information available for any site - this includes antenna/receiver types, site images, monument information, etc. Users may also search for GPS sites via a variety of text-based methods.

Site Logs A listing of all site logs, including non-sanctioned sites. Note: Windows users may need a unix->windows text converter

Receiver/Antenna Codes The official IGS listing of antenna and receiver model names and their corresponding codes. These codes are used in the site logs for all sites.

Antenna Dimension Diagrams Diagrams for several common models, showing the distance from the antenna reference point (ARP) to various points on the antenna.

NGS Antenna Calibration Page These represent the official NGS set of mean offsets and elevation-dependent phase center variations for several antenna models.

IGS Antenna Calibration Offsets / Phase Center Variations These represent the official IGS set of mean offsets and elevation-dependent phase center variations for several antenna models.

Coordinates: Cartesian and geodetic coordinates valid for available reference epochs. Coordinates reflect the position of the monument/geodetic reference point (GRP).

Other resources:

NGS HTDP utility enables coordinate transformation between reference frames.

SECTOR Scripps Epoch Coordinate Tool and Online Resource: calculates coordinates for the site(s) of interest, for the year/day (epoch) given

SCOUT The Scripps COordinate Update Tool provides accurate coordinates, given an input RINEX file

SCIGN Monument Information An overview of the SCIGN monument, including explanations of the antenna, geodetic and eccentric reference points.

Velocities: Site velocities derived from SOPAC's refined model

ITRF2005 xyz, NAD83 lat/lon/ellip. ht velocities (and coordinates), 2007.0 epoch

Other resources:

SOPAC current site velocities A list of sites with velocities estimated at SOPAC

SECTOR Scripps Epoch Coordinate Tool and Online Resource: calculates coordinates for the site(s) of interest, for the year/day (epoch) given, using SOPAC/CSRC site velocities

SOPAC Velocity Maps a utility that allows users to map continuous GPS site velocities

Precise Orbits: GPS satellite orbit files in various formats.

SOPAC archive orbits Orbit files from several analysis centers are available under the "products" category, and are named by GPS week.

Time Series: Site time series derived from SOPAC's refined model

SOPAC North/East/Up time series A list of sites with time series estimated at SOPAC. Java applet and standard versions are available.

Utilities: Various tools to help users obtain and process GPS data.

SECTOR Scripps Epoch Coordinate Tool and Online Resource: calculates coordinates for the site(s) of interest, for the year/day (epoch) given

SCOUT The Scripps COordinate Update Tool provides accurate coordinates, given an input RINEX file

Check site code(s) availability Provide one or more site codes to check whether they have been previously used, or are available.

Winzip All RINEX files on the SOPAC data archive are unix-compressed (.Z) to maximize storage. Winzip will uncompress these files under Windows-based operating systems.

Hatanaka Uncompress Most RINEX files on the SOPAC data archive are also Hatanaka-compressed (.YYd, where YY is year). Use the crx2rnx utility described at this link to convert them to RINEX format.

teqc This UNAVCO utility performs RINEX file translation, quality-checking, and other useful functions.

GPS Calendar This calendar will help you convert a typical calendar day to either the day of year or GPS week number.

Convert Date A tool to convert between several different date formats.

General Information: Other resources, which are not specific to any of the above categories

RINEX format The Receiver INdependent EXchange format described.