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INDI Library v2.0.6 is Released (02 Feb 2024)

Bi-monthly release with minor bug fixes and improvements

guide module (internal)

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Replied by wotalota on topic guide module (internal)

Yes I varied from 2 to 10 seconds, 25% to 66% etc without dramatic effect or finding a sweet spot. The incorrect/excessive 8 seconds 33% would track below 0.5 for a while and sometimes exceed 1.0. I did not learn much from the exercise on how the parameters work, but the way it tracks really well, then goes off for a while makes it seem like something external to the software needs attention. Think I will next try and run guiding without issuing any corrections, and see how the scope drifts to get a baseline.
4 years 11 months ago #37998

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Replied by Ron Kramer on topic guide module (internal)

Stay in touch here - since we have similar setup. Where are you? your profile pic weather looks like mine in W. Michigan = ) I'm about to head out and see if I can tweak shutter alignment now that it's off... since I switched scopes to a 11 rasa.
AP Mach1 / CP4 APCC & PEMpro.
EXP SCI - ED152cf APO - Celestron 11" RASA - Stellarvue 80mm
Baader F2 HS NB filters, Lodestar X2 guide camera / OAG - ZWO 290mm mini
ZWO ASI1600MM Pro / ASI174M (solar) / ASI094MC
NEXDome, CLoudwatcher, AVX mount/ASIair and Stellarmate

4 years 11 months ago #38008

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Replied by Ron Kramer on topic guide module (internal)

[b}SNAP! only took around 2.5 hours of tweaking to try and learn what teh settings do... but read em and weep![/b]

It's been in the .3's for the past 1/2 hour.


AP Mach1 / CP4 APCC & PEMpro.
EXP SCI - ED152cf APO - Celestron 11" RASA - Stellarvue 80mm
Baader F2 HS NB filters, Lodestar X2 guide camera / OAG - ZWO 290mm mini
ZWO ASI1600MM Pro / ASI174M (solar) / ASI094MC
NEXDome, CLoudwatcher, AVX mount/ASIair and Stellarmate

The following user(s) said Thank You: Jasem Mutlaq, Gonzothegreat, Jerry Black
Last edit: 4 years 11 months ago by Ron Kramer.
4 years 11 months ago #38033
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Thanks for sharing the screenshot. That ‘s very useful for next time I’m out there.


Wouter
4 years 11 months ago #38051

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If the 0.3 is repeated again on a different night using the same settings, then Ron is into something!!
4 years 11 months ago #38059

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Replied by wotalota on topic guide module (internal)

I'll try Ron's settings next time out, but the forecast looks like that will be over a week away.
4 years 11 months ago #38071

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Replied by Ron Kramer on topic guide module (internal)

It's supposed to be clear here tonight.

My mount is over weighted 40+ lb RASA, cameras, EFW, 80mm guide scoope, and a slew of heaters/wires n USB hubs.... and still I had 2+ hours of under .35 (consistent no weird spikes).

I learn by doing - so I may be in error - but this is what I feel I've found.

Let me explain something else (not sure if it will matter). I first tried ST4. This means I calibrated with ST4. Wasn't working well at all, so before giving up I went to direct to mount guiding. (STILL BAD) but it didn't seem to calibrate? (does previous calibration get used?) so there was no huge steps across the sky.
I just switched and seemed ok... then I started tweaking the settings.

Proportional gain appears to be the amount of correction you ALLOW the mount to do. 66.6 is recommended but I was having a DEVIL OF A TIME (get it 666)
It was guiding (ok) but was way off center line. It could not correct enough to get the graph to 0. I increased proportional gain... 99, 133, 166, as it moved closer to the 0 line. I ended up at 266. Higher than that seemed to be worse (in quick test) so I went back. 266.

To me this is AGGRESSIVENESS.

MIN PULSE - I thought was the smallest pulse it would give. Instead, it's more like PHD's MIN MOVE. It is the smallest error that will be corrected.
So if you have it set to 100 (default). It will not correct the mount until it is 1.0 IN ERROR! That's to much error for me. By reducing this setting it seemed that I was correcting sooner. .50 correcting any error over .49 Going to 25 corrected errors over .24

There is a limit. If you go too low (lower than seeing conditions) you will correct for poor seeing and you will get oscillation where your corrections go UP AND DOWN AND UP AND DOWN - because the corrections are correcting for seeing that is changing and over corrects.

I tried longer exposures and again it didn't seem to correct quickly enough so I reduced exposure to around 2.5 - 2 seconds.
It took a good 1 - 1.5 hours of tweaking and watching the effects of the correction bars. I turned off DEC and did RA only and then visa versa to help clarify what I was seeing. (I have the entire process captured into - most likely a BORING video, but watching it would probably be enlightening as it shows my tweaks and the results. Though it will be MUDDIED with a lot of "reentering all my settings" as I have a problem of them NOT BEING RETAINED. = (

I had a ah-ha moment as well. I have LUM RGB and SHO in my APO filter wheel. Of course, I focus with the lum. Someone asked on here a short while ago, how do I focus in HA. I said you don't.

here it comes... the RASA has a EFW with only S H O in it. (DOH) LUCKILY - it's a F2.2 scope with highspeed NB filters for this aperture. If I kick the gain a little I can get focus and place solve exposures in 3-4 seconds with Ha.

so - correction - to focus in HA boost the gain and aperture to allow a decently quick exposure. = )
AP Mach1 / CP4 APCC & PEMpro.
EXP SCI - ED152cf APO - Celestron 11" RASA - Stellarvue 80mm
Baader F2 HS NB filters, Lodestar X2 guide camera / OAG - ZWO 290mm mini
ZWO ASI1600MM Pro / ASI174M (solar) / ASI094MC
NEXDome, CLoudwatcher, AVX mount/ASIair and Stellarmate

4 years 11 months ago #38074

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Replied by Ron Kramer on topic guide module (internal)

Another from last night with target - notice the guider cam VIA I changed to pulse from ST4 after I had calibrated with ST4 ???
in case it matters.

P.S. I'm quite sure my polar alignment is off too. I've bumped the mount around the last couple months and then swapped scopes and balanced and bumped the mount (I have a tripod) and by watching the dec I know I'm way off. So this awesome .32 RMS result is with poor alignment after wrestling off the 6" and bouncing a 11" RASA up on the mount. I won't check alignment until things warm up a bit out there at night.

hmmm just occured to me. POLEMASTER won't work on the PI. I may have to try the Ekos alignment tool.
I'll try and check my spacing today - I totally could not get any subs that appeared to be in focus. (let me see if I have one to share). It has to be camera spacing.

yeah zoomed in on one. Focus routine said I was HFR of 1.5 !!!! but was grossly out. I'll bet it's spacing.
attached...



AP Mach1 / CP4 APCC & PEMpro.
EXP SCI - ED152cf APO - Celestron 11" RASA - Stellarvue 80mm
Baader F2 HS NB filters, Lodestar X2 guide camera / OAG - ZWO 290mm mini
ZWO ASI1600MM Pro / ASI174M (solar) / ASI094MC
NEXDome, CLoudwatcher, AVX mount/ASIair and Stellarmate

Last edit: 4 years 11 months ago by Ron Kramer.
4 years 11 months ago #38075
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I shall try your settings this evening as I have a 100% clear night, minus full(~ish) moon.
4 years 11 months ago #38077

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Replied by Ron Kramer on topic guide module (internal)

TONIGHT - no luck.

Every time I switched from ST4 to direct pulse guiding - IT would try and calibrate. It would do more than 3 itterations even though I had 3 set.
I went back to watch the video of my good guiding and... I calibrated in ST4. I then switched to direct/pulse and it didn't recalibrate!?!!?!?

That is when it worked great. Jasem, is it possible for you to edit the code to by pass calibration? so I could calibrate with ST4.
STOP then change to pulse guiding and (by pass) and keep the last calibration?

I think that would do it. I'd love to test that. Everytime I tried pulse guiding it would calibrate and though it started just fine for about 8-10 kicks... it would then take off and start jumping around huge amounts. "that is the problem with the guiding module".

I think by pass would allow me to skip that jumping around part.
AP Mach1 / CP4 APCC & PEMpro.
EXP SCI - ED152cf APO - Celestron 11" RASA - Stellarvue 80mm
Baader F2 HS NB filters, Lodestar X2 guide camera / OAG - ZWO 290mm mini
ZWO ASI1600MM Pro / ASI174M (solar) / ASI094MC
NEXDome, CLoudwatcher, AVX mount/ASIair and Stellarmate

4 years 11 months ago #38108

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Replied by wotalota on topic guide module (internal)

Ron,
There are a couple of things. When you do not have to calibrate when making the switch from ST4 to pulse guiding, perhaps it is because it is using a calibration from some previous time. There is a clear calibration button near the top (trash can?). Perhaps if you cleared that it would then need to recalibrate.

Rather than being able to switch modes between calibration and guiding it would be preferable to fix calibration using pulse guiding. Can you enable logging for the guiding and the AstroPhysics driver the next time you use pulse guiding to calibrate? And/or check the mount's indi panel for errors during calibration. For me it doesn't work and generates mount errors, it would be of interest to know if it is just me or you also encounter an error problem.
Tom
4 years 11 months ago #38131

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Replied by Ron Kramer on topic guide module (internal)

I was gonna shelve it until something is done... and move to my portable setup. However I can try again tonight to do as you requested.
YES I think if we could calibrate in pulse mode we'd probably be fine.
I'll give it a shot in a couple hours.

I'm wondering if this is a AP mount only issue with the experimental driver? or is it something in the calibration code? It would help if more people spoke up... because if I knew that other types of mounts were calibrating fine every time... then it would narrow it down to the experimental driver.
AP Mach1 / CP4 APCC & PEMpro.
EXP SCI - ED152cf APO - Celestron 11" RASA - Stellarvue 80mm
Baader F2 HS NB filters, Lodestar X2 guide camera / OAG - ZWO 290mm mini
ZWO ASI1600MM Pro / ASI174M (solar) / ASI094MC
NEXDome, CLoudwatcher, AVX mount/ASIair and Stellarmate

Last edit: 4 years 11 months ago by Ron Kramer.
4 years 11 months ago #38183

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