Russian Visitor Brings Ionospheric Data to NSSDC

Volume 12, Number 2, June 1996
By Joseph King and Dieter Bilitza

Dr. Alexander Feldstein of World Data Center B2 for Solar-Terrestrial Physics in Moscow visited NSSDC for the week of April 8-12, 1996, to discuss many areas of common interest concerning the management of space science data. Dr. Feldstein and NSSDC have long corresponded regarding both data management approaches and technologies and regarding the exchange of actual data products.

Dr. Feldstein brought with him a floppy disk containing sample data from the Cosmos 1809 spacecraft, which was active between December 1986 and May 1993. This spacecraft, also called IONOSONDE because it carried a topside ionospheric sounder, was in a 960-km, 82.5 deg inclination orbit. It also carried an impedance probe, a high-frequency probe, a mass spectrometer, a photoelectron spectrometer, a DC electric field detector, and low- and high-frequency wave analyzers. The data samples (plots) were prepared by Dr. Yu Romanovsky of the Institute of Applied Geophysics in Moscow and are available at Moscow plans to process data from selected instruments for 50 time periods of special interest and put them on CD-ROM, copies of which will be made available to NSSDC for distribution to NSSDC's user community. Parameters on the CD-ROM will be electron density, electron temperature, DC electric field, and AC electromagnetic field.

During his stay at NSSDC, Dr. Feldstein had extensive discussions with James Green; James Thieman; Natalia Papitashvili, a former colleague at WDC-B2; Michael Teague; and the authors of this article. After his stay he went on to visit the National Oceanographic and Atmospheric Administration's (NOAA) WDC-A for Solar-Terrestrial Physics in Boulder, Colorado, and other U.S. sites.

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Author:Miranda Beall (
Curators: Erin Gardner ( and Miranda Beall (beall@g
Responsible Official: Dr. Joseph H. King, Code 633
Last Revised: 21 Nov 1996 [EDG]