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INDI Library v1.8.6 Released (21 Aug 2020)

August 2020 release of INDI Library v1.8.6 introduces new drivers while providing fixes and improvements to existing devices and core framework.

New KStars/Ekos Module: Analyze

1 month 2 days ago
schwim
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New KStars/Ekos Module: Analyze #60493
I'm loving the analyze tab! A few observations based on a build from source that was pulled 9.23.2020:

- The HFR value is always 0. If I open one of the fits files I do see the measurement is there.
- skyBg has a value but its presentation on the graph appears to be just a flat line at the bottom so you can't any detail on minor changes sub to sub. No way to zoom in to see fluctuation over time.

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1 month 2 days ago
hy
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New KStars/Ekos Module: Analyze #60496
@schwim: HFR won't have values unless it's computed, and to do that, the option to compute needs to be set.
To do that, you need to check an option in FITS settings--see the attached image, look for "Auto Compute HFR".



FYI, You're absolutely right, this is a common problem, and I tried to have a pop-up alert folks of this,
which is triggered if you check the HFR box when the "auto compute HFR" option is not set.
Let me know if the popup doesn't happen (e.g. you uncheck and then check without the FITS option and don't see a popup)
Perhaps the problem is that HFR is on by default, so you don't ever need to check it?

Hy
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1 month 2 days ago
airscott
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New KStars/Ekos Module: Analyze #60497
Since you asked for synonyms, here's how I name those same filters:

L, R, G, B, Ha, O3, S2

Thank you for your wonderful contributions to this project!

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1 month 2 days ago
hy
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New KStars/Ekos Module: Analyze #60498
@schwim

Greg,

re skyBg, for now I believe that getting values for that requires using SEP MultiStar for guiding (which is where the skyBG gets computed).
This may change when the stellar solver happens. For now, Analyze just "takes what it can get" as opposed to computing these things somehow.
It should say this on the mouse-over help, but, I know that's not a totally reliable way of informing users.

As I recall, you were having issues with the SEP Multistar and your ONAG, so perhaps you moved away from that.
Let me know if you're not getting it with SEP MultiStar.

Hy

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1 month 2 days ago
schwim
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New KStars/Ekos Module: Analyze #60503
Hy,

I did notice the value was -1 previously so I found and turned on Auto Compute HFR in the settings. From that point it now reads as zero. I see you also have Quick HFR enabled. I don't. I'll give that a shot.

I just disabled auto compute hfr and checked the graph checkbox and I did get the popup. I don't recall seeing it previously.

Perhaps what you can do in cases where it is not computed is put 'off' in the field.

Re: skyBg, the tool tip popup is clear as to where the data comes from. I'm using SEP Multistar so I am getting values. The values are present if I scan the timeline, just the graph is flat. I figured out why. Turns out my guider was still imaging as the sky brightened, and the tail of it has backgrounds that rapidly increase. If you look at the tail of the graph (way after the last sub so I didn't see it) it does climb rapidly, which shoves the useful stuff down into the floor of the graph. If I delete those lines from the .analyze file the graph is now presenting useful data.

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1 month 2 days ago
hy
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New KStars/Ekos Module: Analyze #60507
Thanks Scott!

I think all those are already covered.
invent.kde.org/education/kstars/-/blob/m...yze/analyze.cpp#L151
However, if you notice your filters not being color-coded in Analyze, please let me know.

Hy

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1 month 2 days ago
hy
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New KStars/Ekos Module: Analyze #60509
@schwim

Greg,

I guess you're right that sky background normalizes by the max value.

Quick HFR shouldn't make a difference in seeing the values (let me know if it does). What it does is just compute HFR on the center 25% of the image. That speeds up the computation considerably, as in some cases the hfr can take quite a while to compute on a raspberry pi. If you have auto compute hfr on, but yet hfr is not being computed, please send me a log with debugging turned on for at least the EKOS sections: Indi, FITS and Capture, and Verbose & File checked at the top of the logging dialog.

BTW, the value might read 0 if you have the cursor set to somewhere outside of a capture interval. Click on a capture in the timeline (one that's after you turned on auto-compute HFR, of course) and check the value displayed as well the value printed in the "Details" box in the lower left, and let me know if it's still 0.

Thanks,
Hy

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1 month 2 days ago 1 month 2 days ago by schwim.
schwim
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New KStars/Ekos Module: Analyze #60511
Hy,

That would be a fail on my part if that were the case! Alas, it's not cursor placement. If I go outside of a sub it will show blank in many cases but not all. If I click a sub, it shows 0.00. I opened the .analyze file and see the HFR as 0.00 in all CaptureComplete lines, and if I manually put a number in there it does reflect in the graph, so the graphing appears to be working correctly.

I'll do some more debugging this evening and let you know what I find.

Thanks!
Greg

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1 month 1 day ago
schwim
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New KStars/Ekos Module: Analyze #60559
Hy,

OK, whatever I poked at yesterday now provides an HFR number in the Analyze tab. However, the number never changes from sub to sub, and the HFR calculated in the fits viewer is significantly different than the number presented on the graph (e.g. 1.34 in viewer, 0.94 in Analyze). Focus HFR is also different. I tried changing the Quick HFR viewer setting but that did not change things.

Greg

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1 month 1 day ago
hy
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New KStars/Ekos Module: Analyze #60572
There's a log line (if you have fits verbose logging set) that looks like this
[2020-04-27T03:21:10.600 PDT DEBG ][           org.kde.kstars.fits] - FITS HFR: 2.35749
It's printed to your kstars log file when the HFR is computed.

There's also, of course, the HFR in the .analyze file in 'CaptureComplete' right after the filter and before the filename:
CaptureComplete,9043.158,240.000,Green,1.499,/home/pi/mydisk//seahorse/Light/Green/seahorse_Light_Green_240_secs_2020-09-19T22-28-33_223.fits
Those should have the same value for the same capture (the above examples are not from the same capture ;)

Are you seeing differences? Is it plotting something different?
If you want me to have a look, please send the log and the .analyze.

Thanks,
Hy

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1 month 1 day ago
schwim
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New KStars/Ekos Module: Analyze #60574
I don't have fits debugging turned on. Will give it a shot again tonight. At the very least the focus HFRs are not matching. The analyze data looks like this:
CaptureComplete,6910.911,300.000,L,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/L/Light_L_300_secs_2020-09-23T23-06-30_001.fits
CaptureComplete,7830.227,600.000,L,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/L/Light_L_600_secs_2020-09-23T23-20-35_001.fits
CaptureComplete,8458.568,600.000,L,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/L/Light_L_600_secs_2020-09-23T23-35-01_002.fits
CaptureComplete,9530.181,900.000,L,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/L/Light_L_900_secs_2020-09-23T23-52-53_001.fits
CaptureComplete,11028.627,1200.000,L,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/L/Light_L_1200_secs_2020-09-24T00-15-44_001.fits
CaptureComplete,13210.166,1800.000,Ha,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/Ha/Light_Ha_1800_secs_2020-09-24T00-54-13_015.fits
CaptureComplete,15094.138,1800.000,Ha,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/Ha/Light_Ha_1800_secs_2020-09-24T01-25-37_016.fits
CaptureComplete,17134.684,1800.000,Ha,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/Ha/Light_Ha_1800_secs_2020-09-24T01-59-37_017.fits
CaptureComplete,19174.548,1800.000,Ha,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/Ha/Light_Ha_1800_secs_2020-09-24T02-33-37_018.fits
CaptureComplete,21212.947,1800.000,Ha,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/Ha/Light_Ha_1800_secs_2020-09-24T03-07-35_019.fits
CaptureComplete,23264.680,1800.000,Ha,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/Ha/Light_Ha_1800_secs_2020-09-24T03-41-47_020.fits
CaptureComplete,25316.347,1800.000,Ha,0.940,/home/schwim/Dropbox (7e7)/Astrophotography/working/fsq106/ngc7000/Light/Ha/Light_Ha_1800_secs_2020-09-24T04-15-59_021.fits

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1 month 1 day ago 1 month 1 day ago by Bart. Reason: spelling.
Bart
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New KStars/Ekos Module: Analyze #60575
Hello Hy, great idea and excellent work for this module!!

I was wondering if you could 'just' use text for the filters, instead of the close-to-each-other colours? :)
And maybe a toggle switch for the guide graph to switch between 'time / frequency' (using Fast Fourier Transform) so it's relatively easy to analize if there's an obvious periodic error in the mount.

15 cm wavefront condensor | Earth rotation undo-er | Few photon discriminator plates | Photons to electrons transmogrifier | Stellarmate

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