BW scanners behavior

Hi,
I’m studying the behavior of BW scanners in for my master thesis. Is there any public data about when a relay was measured [start and end time]? Or any other way to retrieve that info ? Or maybe to simulate the process?

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Here you can get the recent reports. If you want to simulate a Network you should look for shadow and Chutney.

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Hi, I’d also recommend reading about:

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Thank you for all responding.
I found, however, not much I can use.
All I know for sure is that there are 6 bandwidth authorities.
Does that mean only 6 scanners?
The documentation mentions that a bandwidth authority can have several.
The closest data that can help in studying the behavior of the scanners is their log files, as they contain exactly the time (end and start) and the result of each measurement. Those logs are rather not published.

The only tool that can simulate the network with all DAs is from Rob Jansen. Yet it requires 4TB of RAM.

Ala via Tor Project Forum:

Thank you for all responding.
I found, however, not much I can use.
All I know for sure is that there are 6 bandwidth authorities.
Does that mean only 6 scanners?
The documentation mentions that a bandwidth authority can have several.
The closest data that can help in studying the behavior of the scanners is their log files, as they contain exactly the time (end and start) and the result of each measurement. Those logs are rather not published.

The only tool that can simulate the network with all DAs is from Rob Jansen. Yet it requires 4TB of RAM.

You should be able to get a bunch of information out of the publicy
available bandwidth files the bandwidth authorities produce. For recent
ones see e.g.

https://collector.torproject.org/recent/relay-descriptors/bandwidths/

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