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Based on the format documentation, the records are not space delimited: https://files.igs.org/pub/data/format/sp3c.txt. The data, however, is sent in with F14.7 instead of F14.6 – I can reach out to the provider about the precision but otherwise, they are within the specifications of the documentati...

The IGS combined GLONASS experimental products (Ultra-rapid: igv* and Final: igl*) were discontinued. Please see IGSMail-8697 for more details. https://lists.igs.org/pipermail/igsmail/2026/008693.html

You can find information about our Ionosphere total electron content at this link. Go to the section under "Ionosphere."
https://www.earthdata.nasa.gov/data/space-geodesy-techniques/gnss/atmospheric-products

The CDDIS has ionosphere total electron content maps available in our archive. Information on these files is found here: https://www.earthdata.nasa.gov/data/space-geodesy-techniques/gnss/atmospheric-products Information on downloading CDDIS data is found here: https://forum.earthdata.nasa.gov/viewto...

The people best able to answer your questions are Siddharth Krishnamoorthy (Siddharth.Krishnamoorthy@jpl.nasa.gov) and Camille Martire (camille.martire@jpl.nasa.gov).

The best people to direct your questions to would be Siddharth Krishnamoorthy (Siddharth.Krishnamoorthy@jpl.nasa.gov) and Camille Martire (camille.martire@jpl.nasa.gov).