NMDB Meeting 2025: Cosmic Ray studies with Neutron Detectors

The ARTEMIS-IV\JLS free access database (ARTDB): Off to a Good Start-With Room for Improvement

21 Mar 2025, 14:30

20m

Seminar Room (Physics Department )

Databases and Catalogues

Speaker

Dr Spiridon Armatas (National and Kapodistrian University of Athens: Department of Astrophysics, Astronomy and Mechanics)

Description

Open-access data is vital for advancing solar and space physics, promoting collaboration and combination of diverse datasets. To this end, the ARTEMIS-IV/JLS free-access database (ARTDB), presented by the ARTEMIS-IV/JLS Group, provides extensive solar radio observations from the ARTEMIS-IV Multichannel Radiospectrograph, operated by the University of Athens at Thermopylae, Greece (Lat: 38° 49'N, Lon: 22° 41'E), since 1996.

ARTEMIS-IV records daily spectra (05:30–15:00 UT) across 20–650 MHz using two receivers:
1. The Global Spectral Analyser (ASG)–covering the full band at 10 samples per second.
2. The high resolution Acousto-Optic Spectrograph (SAO)–1.4 MHz, 100 samples/s in the 265–450 MHz range.

Generating ~1.5 GB of data per day, ARTDB provides FITS-formatted spectral recordings and daily overview images (“Quick Looks”). The website (http://artemis-iv.phys.uoa.gr) also features select radio burst spectra, scientific publications, and educational resources.

Future improvements of the ARTDB include expanding event catalogs and implementing automated data processing for enhanced calibration and quality control.