Upgrading waveguide supports and direction pointing indicator on LRO-H2 (SCRT) radio telescope 12/4/2025
Data I have collected so far suggests I am having some flexure in the waveguide supports which changes as the
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astronomy.network The Website of Lichfield Radio Observatory (LRO)
Andrew Thornett, Lichfield, England, M6THO, andrew (at) thornett (dot) net
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ezRA has identified an error in the recorded right ascension for data collected with one of the LRO hydrogen line radio telescopes. How does this error in right ascension affect the azimuth measurement that should be used for ezCol .txt data files?
More detail on the issue: The ezRA screen output during processing of data collected from LRO-H2 using ezCol had identified
Read morePoem: Vastly Vexed at Very Large Array
Vastly Vexed at Very Large Array Poem (c) by Andrew Thornett April 2025 in the style of Robbie Burnes Vast dishes
Read moreM-Class Flare detected at LRO 31/3/2025 via UKRAA 23.4KHz SID monitor
Sudden Ionospheric Disturbances (SIDs) are changes in power level of very low frequency signals detected with simple equipment in our
Read moreCatalogues of H1 sources (hydrogen)
The THINGS survey is what you are looking for – research paper (web) can be seen below: https://iopscience.iop.org/article/10.1088/0004-6256/136/6/2563/meta Download above
Read more1m Triax Satellite Dish arrives for water maser radio observing programme
Another project underway is water maser radio observing. This requires a 1m dish (arrived today, below) and an LNB for
Read moreHow to zero resistance measurements on VA40B Multimeter
I own the VA40B Multimeter – part of my testing regime for aerials involves measuring resistance. To ensure accurate resistance
Read moreFITS Software
The following is an extract from https://fits.gsfc.nasa.gov/fits_viewer.html: FITS Image Software Packages for image viewing, analysis, and format conversion The following
Read moreUsing TOPCAT Software for Windows to visualise and interpret SDFITS data (NASA single dish data format)
The SDFITS single dish data format (https://safe.nrao.edu/wiki/bin/view/Main/SdfitsDetails#:~:text=Briefly%2C%20SDFITS%20is%20a%20convention%20for%20storing%20single-dish,freedom%20to%20add%20any%20additional%20columns%20as%20necessary): The SDFITS convention was developed in the late 1980s. An early version was
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