What kind of Radio Astronomy could be done with the SatNOGS setup?

electronics
rotator

#1

This is a re-post of one of my posts in the middle of a thread that essentially created this category:

I think this could be an off-shoot of the SatNOGS project. I’ve recently talked to several people that are interested in #RadioAstronomy. The Open-Source rotator could most certainly be used to move a set of loop yagis (or parabolic dish?) at various objects in the sky for the Hydrogen Line (and Doppler Shifted down). The database could contain predictions for objects in our solar system and rather than LEO satellites. Eg. the Sun, the Moon and Jupiter. Various parts of the Milky Way might be interesting to track. How about tracking meteors, using known radar sources and crowd-sourcing receiving the return signal?

There’s a wealth of information in this document:

Notes on Amateur Radio Astronomy for Beginners - rtl-sdr.com
RTL-SDR.com reader Jean Marie Polard (F5VLB) recently wrote in to let us know about a useful document that he has put together which covers beginners amateur radio astronomy. The document includes various introductions to the types of…

There is no reason the Sun could not be one of the first objects to be tracked by a project like this. A disturbed sun has a lot of emissions between 30 and 3 GHz. The earth is the sun’s natural satellite. Yet, due to the earth’s rotation, the sun appears as if it has an orbit around the earth once a day.

Sun at 210 MHz:
http://science.org.ge/old/3-2/Makhandarashvili.pdf3

11.4.1 Meter-Wave Range (25 - 500 MHz)
11.4.2 Decimeter-Wave Range (500 - 2000 MHz).
http://www.cnofs.org/Handbook_of_Geophysics_1985/Chptr11.pdf1

–Konrad


#2

You could also possibly use CW Beacons on 6m or 2m or maybe even 70cm for the radar sources.

Tho now that i think about it that would be better for using it to study the ionosphere. xD


#3

I am pretty interested in this. I have a horn a friend made that should let me see the Hydrogen Line (https://en.wikipedia.org/wiki/Hydrogen_line). Any idea what it would take to add celestial objects to the satnogs network? :smiley:


#4

I got 3 different LNAs. One is a dishnet work one. Another is one meant for 36 Ghz X/


#5

For 2-6 GHz, I’ve found an interesting mixer/oscillator that works pretty well to down convert into 1 GHz or so. It’s called moRFeus. It’s available here: https://othernet.is/products/morfeus-1

–Konrad


#6

We might be able to use part of SatNOGS software to do a Radio Telescope type stuff and have it’s own network.


#7

Hey,

Here my 50 cent contribution, for the existing “satnogs rotator” system as is.

In the down time you can use your system to track the sun and detect solar flares in both 144MHz and 435MHz area.

Another idea is to point your antennas towards Graves (france) to do meteor detection at 143.050Mhz. this is more intended for Europeans.

Greetz,
Joseph


#8

There’s some interesting work being done by the HamSCI folks at http://hamsci.org/projects

They studied the effects of the 2017 solar eclipse on the ionosphere.