USER ALERT: CDDIS is currently migrating our website from cddis.nasa.gov to earthdata.nasa.gov, which is scheduled to be complete in June 2025. CDDIS is also migrating our FAQ from cddis.nasa.gov to forum.earthdata.nasa.gov during the first week of May 2025. For more information, please see the following web page (https://cddis.nasa.gov/Web_Unification.html)

close window
CDDIS: NASA's Archive of Space Geodesy Data
JPL GDGPS daily accumulated real-time GPS POD 1-second clock corrections product

doi:10.5067/GNSS/GDGPS_daily_acc_POD_1sec_clk_corr_gps_001

Data Center Citation

Noll, Carey E., The Crustal Dynamics Data Information System: A resource to support scientific analysis using space geodesy, Advances in Space Research, Volume 45, Issue 12, 15 June 2010, Pages 1421-1440, ISSN 0273-1177, http://dx.doi.org/10.1016/j.asr.2010.01.018.

Data Citation

NASA Jet Propulsion Laboratory, JPL GDGPS daily accumulated real-time GPS POD 1-second clock corrections product, Greenbelt, MD, USA:NASA Crustal Dynamics Data Information System (CDDIS), Accessed [[enter user data access date]] at doi:10.5067/GNSS/GDGPS_daily_acc_POD_1sec_clk_corr_gps_001.

Other standard citation formats may be used for this data set and can be found at the DOI Citation Formatter website.

More information about CDDIS data citations and acknowledgments is available.

Summary

  • Name: JPL GDGPS daily accumulated real-time GPS POD 1-second clock corrections product
  • Format: JPL TimeDependentParameter (ASCII)
  • Spatial Coverage: 90.0 to -90.0, 180.0 to -180.0
  • Temporal Coverage:
  • Temporal Resolution: 1 second
  • File Size: 47 MB
  • Platforms: Multiple GNSS

Description

This product contains a high-rate time series of clock biases for healthy satellites in the GPS constellation that are accumulated every minute throughout the day. In addition, formal 1-sigma uncertainties for the corrections are provided. 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 1-second clock corrections products are online:


in subdirectories by year and day as follows:

YYYY/JJJ/SS/G_YYYY-MM-DD_JJJ_SSI_RRR.tpd.gz

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
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