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Latest Tomsk Ionogram from Real-Time Analysis

Note: The ionogram image above is updated automatically.

Dynasonde is an advanced technique of ionospheric radio sounding, the only existing one that fully implements the phase-based methods of radio measurements. The dynasonde setup at the Ionospheric Observatory of the Tomsk State University, the oldest continuously operating ionospheric facility in Russia (since 1936), is unique in many respects. Here is one of them: This is the first continuously operating combination of the newest Scion HF Radar ("VIPIR") and the data processing software Dynasonde 21 Software Suite including its 3-D plasma density inversion procedure NeXtYZ.

Geographical coordinates:
84°58'4.59" E
56°26'54.83" N
URSI Code TK356

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The Observatory building and rhombic transmit antenna Four of eight receive antennas

Using this page you can watch the current state of the ionosphere over Tomsk. Comparison of the ionogram date and time with the current date and time shown above allows one to judge about an operational state of the system. To get a full access to the present and past data analysis results you need to type in your User Name and Password for this system in the fields on the top of this page and to click on the "Enter" button. To obtain the User Name and the Password please write a message to Dr. Sergey Kolesnik. A limited access is attainable with User Name "Guest" and Password "Guest".