Results of first full drift scan of sky with Alex Pettit 21cm Patch Yagi Antenna from LRO.
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Data collected and processed in ezRA suite. The graph below can be seen to peak when crosses Milky Way x2 in day. 3rd peak in middle = is this when…
Radio observation in hydrogen line (1420MHz)
First Light Data Process with Alex Pettit 21cm Plate Yagi @ LRO 22/9/2024
This involved only a few hours of data collection at one elevation, and was done to demonstrate that hydrogen was picked up – appears to peak over galaxy and suggestion…
Alex Pettit Plate Yagi vs Ptarmigan Array for mapping Milky Way at LRO
I have set up the new aerial from Alex Pettit at SARA next to my existing Ptarmigan ex-military dipole array, to see which is able to get better hydrogen signal…
Assembling Alex Pettit’s Hydrogen Line Yagi antenna
Loosely assembled – I’ve asked Alex some questions before I complete assembly. Andy Hi Alex Before I get the old soldering iron out can I check couple things with you:…
SARA Scope in a Box original download & ezRA suite software & data file structure
ZIP folders for both essential pieces of software for mapping Milky Way. https://www.astronomy.me.uk/Large_media_uploads/ScopeBoxorigdownload.zip https://www.astronomy.me.uk/Large_media_uploads/ezRA.zip
Latest Milky Way map & associated plots at 1420.405MHz (hydrogen) using Ptarmigan Array at LRO (using data up to 17/8/2024)
Processing and plotting with ezRA suite software (Ted Cline)
Successful processing all viable hydrogen data from LRO Ptarmigan Array to 22/6/2024
My Milky Way map after 6 months! Ptarmigan Ex-Military Band 3 array. Hydrogen 1420.405MHz Andy Right click link below to download all viable LRO data up to 22/6/2024 (NPZ and…
Replacing power from computer to separate power supply for Nooelec SAWBird H1+ LNA on Ptarmigan Array Milky-Way-Hydrogen-mapping computer
In order to stop me making the mistake of forgetting to run “Bias-tee-on” each time I restart this computer, I have added a separate 5V power supply to the LNA…
Never forget to run Bias-Tee-On batch file!
I’m an idiot!! Just had to discard several weeks of data on my Milky Way Hydrogen-mapping experiment (Ptarmigan array) because I stupidly forgot to run the Bias-Tee-On batch file to…
Latest Milky Way map from LRO 1/4/2024
LRO’s latest Milky Way map – overlaid with Milky Way maps from Wikipedia and Ted Cline – last diagram annotated with labels of parts of Milky Way shown on the…