Pulsar Observations at Tavolaia Observatory
NOTE: All the information and images presented here are reproduced with permission by Andrea Buti (via Andrea Dell'Immagine - IW5BHY).
Another permanent observatory of the B0329+54 pulsar located in Tavolaia (near Pisa, Italy) run by the Isaac Newton Astronomical Association.
Background
A 3D corner reflector antenna has been installed at the Tavolaia Observatory and observations conducted daily of B0329+54 at 415 MHz.
From the Tavolaia Observatory website here (in Italian - English translation in light grey)...
Receiving System
Antenna Type:
3D corner (constructed by Andrea Buti)
Operating frequency: 415 MHz, 20 MHz of usable bandwidth
Drift scan mode:
2 hours integration time
Measured performances: 1.9 dB milky way to quiet sky
(+54° declination)
LNA:
Low noise, G4DDK (NF = 0.4dB)
Receiver:
HackRF, currently 10MHz BW
Recording SW: GNU radio channeliser, 2 KHz/25 channels format
Back-end SW: PRESTO
Automation software and PRESTO post-processing
created by Andrea and Giorgio Dell'Immagine.
Antenna
The 3D corner reflector antenna used at the Tavolaia Observatory to receive signals from the B0329+54 pulsar at 415 MHz.
Daily Result Files
Observations are running automatically and the results are updated daily...
https://drive.google.com/drive/folders/1yWSp668w82duEwZrNCzZZ8WrG7fRqYMG?usp=sharing
This is a permanent link to share the results.
Contents:
- .fil : latest .fil files (the number of recordings is
limited by the capacity of the shared drive of 15Gbytes)
- Prepfold output profiles : plotted from the .bestprof file
including SNR calculation and monthly average
- FFT : detection by FFT analysis of the dedispersed timeseries. Harmonic summing, up to the 11th harmonic as described in "Handbook of Pulsar Astronomy" - Lorimer and Kramer Section 6.1.3.4 "Increasing sensitivity to narrow pulses"
Examples From the Daily Archive
Prepfold Example:
Profile Example:
FFT Example:
Yet another excellent result from a small antenna !!!