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CDDIS VLBI Auxilliary Files


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,

Data Citation

CDDIS VLBI Auxilliary Files, Greenbelt, MD, USA:NASA Crustal Dynamics Data Information System (CDDIS), Accessed [[enter user data access date]] at doi:10.5067/VLBI/vlbi_data_aux_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.


  • Name: CDDIS VLBI data auxilliary files available from the Crustal Dynamics Data Information System (CDDIS)
  • Format: text
  • Spatial Coverage: 90.0 to -90.0, 180.0 to -180.0
  • Temporal Coverage: 2005 - present
  • Temporal Resolution:
  • File Size: ∼5KB to 150+MB
  • Platforms: Very Long Baseline Interferometry (VLBI)


Very Long Baseline Interferometry (VLBI) auxiliary ASCII files provided by the International VLBI Service for Geodesy and Astrometry (IVS) include schedules, notes, and session log files.

Data Access

CDDIS VLBI data auxilliary files are online.

Starting directory:

in subdirectories by year and session as follows:



Cable calibration
VLBI session observing schedule file (SKD format)
Station weather data during a VLBI session
Station log file for a VLBI session
Summary report of the correlation processing
Code Meaning
YYYY4-digit year
SESS session
Sta station