Telescopes · Fixed · PNU

PNU Fixed Telescope

Historical fixed zenith-pointing 5 m telescope at Princess Nourah University, designed for observation of the 1420 MHz neutral-hydrogen line.

A historical fixed station

The telescope is a real part of the project. Its design is published. Station operations and data are still being added.

Published reference: Y. M. Allawi, E. M. Moneer, M. Shbat, W. M. Dyab, M. J. Banisalman and N. M. Alwadai, “Design and Optimization of a Low-Cost 5-m Radio Telescope at Princess Nourah University (PNU), Saudi Arabia,” Radio Science, 2025 (publication entry · DOI).

Published design and performance values

As reported in the Radio Science paper:

5 m parabolic reflector, fixed and zenith-pointing;
observing frequency around 1420 MHz (the H I line);
focal length 1.75 m;
angular resolution approximately 2.94°;
telescope gain approximately 35 dB;
conical feed horn, with directivity approximately 6.47 dB;
aperture efficiency approximately 51%.

Still to be added

Observing history
To be added
Operational details
To be added
Data archive
Awaiting ingestion The structure is ready in the PNU fixed archive. Publishing the design does not mean the observations are ingested, so there is no download.

For how a fixed zenith telescope observes, see the fixed-telescope learning path.