Michael created a new topic ' automatic meridian flip revisited' in the forum. 3 weeks ago

I tossed this question up a few weeks ago, and Jasem's suggestion to increase SETTLE to 3000 or 4000 seemed to work for a while. Was less active recently, played with my new refractor, so I just didnt need the flip until yesterday

The automated flip started as expected, at the right time, and guiding and exposures were stopped. a few seconds after initiation - I guess after 5000ms (my Settle value) and the mount was still slewing, EKOS started the next plate solve. It also did not try to solve for my original Target M51, but for some other galaxy half way to the celestial pole from there... had to intervene to save the sequence...

my question: what triggers the plate solve after a flip? is there a signal sent from the mount (CEM60)? OR does EKOS analyze mount position data and triggers the plate solve when the slew is complete? OR or is this just a delay/ timer function?

ANy insight is appreciated, Thanks
Michael

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Michael replied to the topic 'myFocuserPro Ekos users?' in the forum. 4 weeks ago

I have 2 running, one on my Tal200, another one on a TS photoline. both require different settings, which I "programmed" on an old XP laptop. They run well on a MAC, and now on a RaspberryPi3. the first implementation involved a belt driven system, and the v curves were "funky" due to some slack in that system. I now have the stepper driving the focuser directly and that works great. 7-20 iterations and I have very reliable results...

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Michael replied to the topic 'EKOS focus module' in the forum. 2 months ago

thanks Ihoujin,

the guide cam is under consistent workload, therefore one can assume the sensor temp would be above ambient, but stable nonetheless, and useful for both purposes.

ran a quick 10 minute test on my ASI120, ambient was 18.5C, within 15" it was at 19.20C and kept at this value throughout the test.

Thanks Chris,
understood, even my home-brew has the option to connect a temp sensor, cost would be minimal so this is not a factor I believe; but another cable means another opportunity for complications, plus the temp sensor readout is already "in" EKOS.

still think it would be a good idea

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Michael created a new topic ' EKOS focus module' in the forum. 2 months ago

several commercial motor-focus units have temp sensors, to trigger an autofocus routine after a certain change in ambient temperature. My guide cam is not cooled, so it't temp sensor returns that ambient temperature. Would be nice if EKOS could query this value to:
1) change the focuser position for the starting point of the autofocus procedure
2) use a definable change of temperature to initiate the next autofocus procedure

Thanks!

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Michael replied to the topic 'cem60 meridian flip' in the forum. 2 months ago

This autofocus procedure ran with auto select star, full frame, and subframe all deselected. but based on the time that it took, several minutes for 10 iterations.

I think (insert standard newbie disclaimer here) that this was a full field evaluation. at my FOV (35'x25') M66 does not have an abundance of stars around, which IMHO makes this target a good object to test "no - subframe - autofocus" after meridian flip.

I found the uniformity of returned HFR values interesting, the "v-curve" was a straight line, and without deeper understand the algorithm I am a little suspicious of the result.

Thanks Jasem!

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Michael replied to the topic 'cem60 meridian flip' in the forum. 2 months ago

Thanks, will try and let you know.

On a side note, re: autofocus module post flip: I left "subframe" unclicked this time, and it completed "successfully": the system shot about 10 frames, 9 returned a HFR of 3.0, one 2.75, so that's where I ended up. I am not sure that this was ideal focus though, any words on wisdom on that issue?

Thanks
Michael

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Michael thanked Jasem Mutlaq in topic cem60 meridian flip 2 months ago

Michael replied to the topic 'cem60 meridian flip' in the forum. 2 months ago

Tried again, but failed the last 2 nights.

Was watching "live", and believe the problem was created when the solver started before the mount was even reaching the pole. Alignment module tried to solve to another Nebula, I assume to the one the mount was flying over when solver started prematurely. Subsequently stepped in and slewed the mount back to M66, and initiated another platesolve: Once this was complete, EKOS started the new calibration of PHD2, and once that was complete it also commenced with the acquisition.

Below is the solver comments during that flip:

2019-04-25T22:28:56 Target is within acceptable range. Astrometric solver is successful.
2019-04-25T22:28:56 Target is within  00° 00' 20" degrees of solution coordinates.
2019-04-25T22:28:56 Solution coordinates: RA (11h 21m 14s) DEC ( 12° 53' 20") Telescope Coordinates: RA (11h 21m 15s) DEC ( 12° 53' 15")
2019-04-25T22:28:56 Solver completed in 6 seconds.
2019-04-25T22:28:50 Starting solver...
2019-04-25T22:28:50 Solver iteration #1
2019-04-25T22:28:50 Image received.
2019-04-25T22:28:39 Capturing image...
2019-04-25T22:27:33 Solver aborted after 42 seconds
2019-04-25T22:26:51 Starting solver...
2019-04-25T22:26:51 Solver iteration #5
2019-04-25T22:26:51 Image received.
2019-04-25T22:26:39 Capturing image...
2019-04-25T22:26:39 Solver timed out.
2019-04-25T22:23:39 Starting solver...
2019-04-25T22:23:39 Solver iteration #4
2019-04-25T22:23:39 Image received.
2019-04-25T22:23:27 Capturing image...
2019-04-25T22:23:27 Solver timed out.
2019-04-25T22:20:27 Starting solver...
2019-04-25T22:20:27 Solver iteration #3
2019-04-25T22:20:27 Image received.
2019-04-25T22:20:16 Capturing image...
2019-04-25T22:20:14 Slew complete. Target accuracy is not met, running solver again...
2019-04-25T22:20:14 Slewing to target coordinates: RA (14h 43m 38s) DEC ( 63° 25' 11").
2019-04-25T22:20:14 Syncing to RA (11h 19m 25s) DEC ( 12° 29' 59")
2019-04-25T22:20:14 Target is within  72° 06' 20" degrees of solution coordinates.
2019-04-25T22:20:14 Solution coordinates: RA (11h 19m 25s) DEC ( 12° 29' 59") Telescope Coordinates: RA (11h 21m 14s) DEC ( 12° 53' 15")
2019-04-25T22:20:14 Solver completed in 6 seconds.
2019-04-25T22:20:08 Starting solver...
2019-04-25T22:20:08 Solver iteration #2
2019-04-25T22:20:08 Image received.
2019-04-25T22:19:56 Capturing image...
2019-04-25T22:19:56 Solver timed out.
2019-04-25T22:16:56 Starting solver...
2019-04-25T22:16:56 Solver iteration #1
2019-04-25T22:16:56 Image received.
2019-04-25T22:16:45 Capturing image...

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Michael replied to the topic 'cem60 meridian flip' in the forum. 2 months ago

Worked perfectly last night, and I was running under PHD2. Have not found the right settings for the internal guider yet....

I believe my mistake was to let the mount (CEM60) initiate the flip at the meridian, so I put the point where the mount flips 10 degrees past the meridian, this obviously gave EKOS priority . Post flip alignment also worked great, and EKOS finished the series wonderfully.

Next step will be to get autofocus to work post flip....

Thanks Jasem!

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Michael thanked Jasem Mutlaq in topic cem60 meridian flip 2 months ago

Michael replied to the topic 'cem60 meridian flip' in the forum. 2 months ago

thank you Jasem!
Funny, but watching your video is just as nerve-racking (in a good way) as working my own equipment. that sure was a success, but I saw you (like me) kept "autofocus every nn minutes" unclicked...

anyway: really enjoy the program, and certainly the interactions with you, and other boarders. I just feel a little like a parasite, and wonder what I could do to help the project...

Thanks again

Michael

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Michael created a new topic ' meridian flip and autofocus' in the forum. 2 months ago

This might be related to my post from minutes ago

CEM60, moonlight

using "subframe" and "auto select star" in Ekos often has the "subframe box" empty after the meridian flip, Autofocus fails, and exposures are halted.

Shouldn't EKOS' autofocus module after a meridian flip start with a full frame capture and repeat a "star auto select" ? Even this could often result in a failed autofocus, as my focus module settings sometimes chooses badly, eg the center of a galaxy, or the biggest star in the field.....

Thanks for any suggestion you may have

Michael

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Michael created a new topic ' cem60 meridian flip' in the forum. 2 months ago

learning the ropes of automated capture.....

CEM60, PHD2, Moonlight

(1) EKOS initiates the flip when arriving at the threshold, but does not wait for the exposure to end
(2) EKOS does not trigger a platesolve after the flip
(3) PHD2 does not know a flip happened, and DEC control goes off the rails, regardless off the "reverse the DEC output" setting...

I don't seem to be able to find the right combo of settings, even tried to use internal guiding....

If you have any idea, or have solved a similar issue, please share!

Michael

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Michael created a new topic ' oK my Astroberry friends,' in the forum. 3 months ago

Until about 2 weeks ago everything was just peachy, no changes on my part, no voltage issues (surge protected circuit), but my system went bonkers:

my mount has moved to somewhere in the MidEast, maybe KNRO's residence? and the date increases randomly(?) maybe with attempts to call the autofocus routine (?) by one month. so in no time I "time-machined" yesterday from April to December....

anybody out there - on Astroberry or Stellarmate - seeing similar behavior?


Thanks

Michael

Astroberry/ RbPi3+; CEM60; ZWO image and guide; Moonlite

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Michael created a new topic ' oK my Astroberry friends,' in the forum. 3 months ago

Until about 2 weeks ago everything was just peachy, no changes on my part, no voltage issues (surge protected circuit), but my system went bonkers:

my mount has moved to somewhere in the MidEast, maybe KNRO's residence? and the date increases randomly(?) maybe with attempts to call the autofocus routine (?) by one month. so in no time I "time-machined" yesterday from April to December....

anybody out there - on Astroberry or Stellarmate - seeing similar behavior?


Thanks

Michael

Astroberry/ RbPi3+; CEM60; ZWO image and guide; Moonlite

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