Peak number of aircraft?

FlightAware ADS-B Flight Tracking
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Is there any (relatively easy) way to report/record a peak value for number of aircraft tracked during a given period?

Looking at my local SkyAware map right now, I can see that I am tracking 65 aircraft. A few minutes ago it was 72. I think I have seen upper 80s a couple of times. But as far as I can tell, the only way to know the highest number I have tracked would be to have been looking at that page at the moment it was happening.

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(while I was typing this, it climbed back up to 73…)

This would be interesting to report for peak message rate too, if that were possible.

Thoughts? Am I missing something?

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You might want to take a look at the graphs1090 package provided by @wiedehopf

With this you will get some nice charts where you can also see the peak aircraft count over time

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Thanks, I have that - and I’m not sure what more I was looking for. I think I remember that the graphs data gets “smoothed” over time, so I didn’t know for sure that it was showing the actual peak.

I suppose I could try to remember to look at it each day at 0:00GMT and manually record the peak value from the chart for the previous 24 hours. Or something like that.

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Yes, it is aligned over time, but you have the peak value documented below the charts.
That is mine the last two weeks

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You see the peak of 145, but it’s not visible in the chart.

Another option would be setting up Grafana/Prometheus with a dump1090 dashboard. Then you can zoom in/out to any area of interest.

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I should also add that I can’t seem to use Graphs1090 with my FlightFeeder978, so I am probably limited to some kind of screen scraping to get the same kind of info from that one.

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Have you read this?

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Yes, but I don’t have ssh access to my FlightFeeder978 - Flightaware has it locked down. If I were to build my own feeder for 978 I could definitely install the graphs app, but there’s no point in doing that since they were kind enough to provide one to me.

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Another thing you should have mentioned :wink:

Anyways, you could run graphs etc on a seperate Pi if Flightfeeder does have the ports open

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There is a “maxima” graph which records actual maximums and propagates them to the lower resolutions.

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Sorry, I’m a bit scattered today. I have a self-built 1090 receiver that I can do whatever I want with, and also the FlightFeeder for 978.

Anyway, not a big deal, I just thought it would be nice info to have it were easy to pull from both systems.

Thanks for the ideas!

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I have no idea if a combine of both are possible. I know there is a combine script available also from wiedehopf who replied recently.

Not sure if this will work or any other option could do the trick (e.g. ModesMixer or Virtual Radar)

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    Import "dump1090"
    <Module dump1090>
        <Instance localhost>
        URL "file:///usr/share/graphs1090/data-symlink"
#URL_978 "http://localhost/skyaware978"                                                                                                                                                        
        </Instance>
    </Module>

Find that section in /etc/collectd/collectd.conf and remove the # for 978, change the URL to point to the flightfeeder.
The restart the collectd service using sudo systemctl restart.

Note that there is no true maxima graph for 978 like there is for 1090.

True maxima graph for 1090:
last 3 years:

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last week:
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