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Archives · Fixed · PSU

PSU fixed telescope archive

What data products exist, in what formats, at what processing stage, and how they relate to one another. The historical observations themselves are browsable in the live Radio Telescope Data Explorer.

Live explorerRadio Telescope Data Explorer

Historical archive available

The PSU fixed-telescope historical observations are available through the dedicated Radio Telescope Data Explorer. The data remain hosted separately from this EMXplore portal; no observation files are duplicated here.

Explore the live archive →

Reading this page. This is the archive architecture for the PSU fixed telescope: the lineage from original recorded spectra to planned modern products. The stages below are described from the project's own account of its historical data. Every stage carries a status; the status refers to ingestion into this portal's own catalogue, not to the Explorer.

  • Available
  • Processing
  • Awaiting ingestion
  • Under validation
  • Planned

Progression

From recorded spectrum to community product

Solid outlines are what was measured. Dashed outlines are what was derived later.

  1. TXT original recorded spectraMeasured
  2. MAT aggregationRepackaged
  3. Historical RA / LST correctionDerived
  4. PSU master structureDerived
  5. Modern reprocessingPlanned
  6. FITS / community productsPlanned
  • Measured what the instrument recorded
  • Derived later produced from measurements by a processing step

Historical lineage

A0 – A3: the data as they exist

Source lineage of the historical PSU fixed-telescope data.

  1. A0: Original recorded spectra

    Measured Awaiting ingestion

    Averaged spectra: frequency versus relative amplitude, with the receiver/background response already corrected. One spectrum per file.

    • TXT

  2. A1: Aggregated observation bundles

    Derived later Awaiting ingestion

    The original spectra gathered into larger files, approximately 1000 spectra per file. Repackaging, not new measurement.

    • MAT

  3. A2: Historical RA / LST-corrected bundles

    Derived later Awaiting ingestion

    Bundles to which the project's historical Right Ascension / Local Sidereal Time correction was applied. See Solar Time → Sidereal Time → Right Ascension.

    • MAT

  4. A3: PSU station master dataset

    Derived later Awaiting ingestion

    The station's historical data combined into one MATLAB structure.

    • MATLAB structure

Modern reprocessing

P0 – P4: the reprocessed scientific archive

Planned. None of these products exist yet, and none will be presented as measured data.

  1. P0: Faithfully decoded historical observation

    Derived later Planned

    The historical files decoded into open formats with no scientific change, so the original measurement is preserved exactly.

  2. P1: Modern celestial-coordinate reconstruction

    Derived later Planned

    Time stamps and station position turned into celestial coordinates again with documented, modern methods.

  3. P2: Doppler / spectral-frame product

    Derived later Planned

    Frequency axis converted to velocity in stated reference frames. See Frequency → Velocity.

  4. P3: Absolute calibration (when scientifically valid)

    Derived later Calibration under validation

    Relative intensity converted to temperature, only if the assumptions and uncertainties can be established for the historical receiver. See Relative Intensity → Temperature.

  5. P4: Community / FITS archive product

    Derived later Planned

    Standards-based reprocessed spectra with provenance, celestial coordinates, velocity reference frames, calibration state and metadata.

Product formats

Modern archive products

Placeholders for the formats the reprocessed archive is intended to offer.

FITS Scientific Archive

Planned

Standards-based reprocessed spectra with provenance, celestial coordinates, velocity reference frames, calibration state and metadata.

  • FITS

No files are connected yet, so there is no download here.

CSV exports

Planned

Plain-text tables of reprocessed spectra for spreadsheets and quick analysis.

  • CSV

No files are connected yet, so there is no download here.

JSON metadata

Planned

Machine-readable description of each product: provenance, processing steps, frames and calibration state.

  • JSON

No files are connected yet, so there is no download here.

Plots and derived products

Planned

Figures and derived maps made from the reprocessed spectra.

  • PNG

No files are connected yet, so there is no download here.

Publication products

Existing publication material

IEEE Antennas and Propagation Magazine, 2025

Available

The peer-reviewed paper describing the fixed educational telescope and its implementation in Saudi academic institutes.

Citation, DOI and BibTeX

Other publication products

Awaiting ingestion

Further papers, figures or datasets tied to the PSU fixed-telescope data.

To be listed when the material is added.