AMATEUR RADIO ASTRONOMY • 21-CM NEUTRAL HYDROGEN
A 4.5-meter radio telescope built for long-term 1420 MHz radio astronomy, repeated observations of the Milky Way, and open sharing of the resulting data and visualizations.
CURRENT OBSERVATORY STATUS
Current conditions for the observatory.
Weather: National Weather Service • Solar flux: NOAA SWPC • Sun/Moon positions and phase: calculated in-browser for the observatory location.
LONG-TERM AMATEUR RADIO ASTRONOMY
Use the dedicated tabs above for the telescope hardware, observation results, workflow, paper and data archive.
FEATURED IMAGES
Selected observation plots, survey products and radio-astronomy visualizations.
LIVE OBSERVATORY
This panel follows the current live broadcast from the Deep Space 1420 YouTube channel rather than a permanently fixed video.
THE OBSERVATORY
This tab is only about the telescope, receiver chain, positioning system and control station.
CONTROL & INSTRUMENTATION
The control station handles telescope positioning, receiver monitoring, recording and the software tools used to operate the observatory.
REAL OBSERVATION PRODUCTS
Featured continuum, spectral and 3D observation results.
OBSERVATION WORKFLOW
The workflow shows how a telescope pointing becomes recorded data, processed measurements and final plots or three-dimensional visualizations.
OBSERVATORY LOG
Observing notes, project updates and related links.
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FEATURED ARTICLES
Survey reports, observing results and selected Deep Space 1420 projects.
MAY 1 – AUGUST 11, 2026
63 individual drift scans across 16 azimuth positions, documenting the measured H I survey from repeated observations through the combined heat map, reconstructed radio-intensity surface and surveyed Galactic region.
JULY 29 – AUGUST 3, 2026
Six consecutive 24-hour continuum observations at AZ 164° and EL 40.1°, comparing the repeated narrow continuum feature near RA 18.7 h across all six observing dates.
2026
Eleven 24-hour spectral FFT observations at EL 58°, spanning AZ 69° through 89° in 2° increments, with polar intensity, velocity-resolved spectral structure, H I velocity ridge and the combined multi-azimuth radio terrain.
TECHNICAL PAPER
The paper documents the telescope, instrumentation, observing approach, processing workflow and initial observational results.
PUBLIC DATA ARCHIVE
Shared downloadable archive of raw csv survey scans with plots and more