Ken
Ken replied to the topic 'Linear 1 Pass gives wrong solution' in the forum. 1 year ago

John,

Thanks for the detailed explanation! I understand much better now. Yes, I see what you're talking about now. There does appear to be a problem here. Below is the debug messages from the driver for this example. I think I'll share this with Robert Brown as well who developed this focuser.

BTW, I tried 1-pass Hyperbolic and Parabola again tonight and both failed in the same way! Therefore my statement that Parabola works is in fact false. Also, the backlash setting is greyed out for me. For now I switched back to the Linear mode.

Does this log shed any additional light on the topic? I'm not sure if the focuser commands are standard or specific to this focuser. I'll check with Robert on this.

[2022-11-02T20:46:47.421 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "Linear: Solution #4: 10184.6 = 1.49838 @ 10083"
[2022-11-02T20:46:47.421 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "Linear: 1stPass solution @ 10083: pos 10184.6 val 1.49838, min measurement 1.40694"
[2022-11-02T20:46:47.429 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "Error in CurveFitting::calculateR2 called for Quadratic"
[2022-11-02T20:46:47.434 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "Linear: extending outward movement by 100"
[2022-11-02T20:46:47.435 Atlantic Daylight Time INFO ][ org.kde.kstars.ekos.focus] - "Focusing outward by 202 steps..."
[2022-11-02T20:46:47.617 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:01#> "
[2022-11-02T20:46:47.617 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <I0#> "
[2022-11-02T20:46:47.617 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:0510285#> "
[2022-11-02T20:46:47.618 Atlantic Daylight Time INFO ][ org.kde.kstars.indi] - MyFocuserPro2 : "[INFO] Focuser is moving to position 10285 "
[2022-11-02T20:46:48.516 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:00#> "
[2022-11-02T20:46:48.557 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <P10184#> "
[2022-11-02T20:46:48.558 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - Abs Focuser position changed to 10184 State: Busy
[2022-11-02T20:46:48.558 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:01#> "
[2022-11-02T20:46:48.606 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <I1#> "
[2022-11-02T20:46:48.646 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:01#> "
[2022-11-02T20:46:48.687 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <I1#> "
[2022-11-02T20:46:50.658 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:01#> "
[2022-11-02T20:46:50.709 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <I0#> "
[2022-11-02T20:46:50.750 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "Linear: un-doing extension. Moving back in by 100"
[2022-11-02T20:46:50.750 Atlantic Daylight Time INFO ][ org.kde.kstars.ekos.focus] - "Focusing inward by 100 steps..."
[2022-11-02T20:46:50.752 Atlantic Daylight Time INFO ][ org.kde.kstars.indi] - MyFocuserPro2 : "[INFO] Focuser reached requested position. "
[2022-11-02T20:46:50.791 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:01#> "
[2022-11-02T20:46:50.921 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <I0#> "
[2022-11-02T20:46:50.961 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:0510084#> "
[2022-11-02T20:46:50.962 Atlantic Daylight Time INFO ][ org.kde.kstars.indi] - MyFocuserPro2 : "[INFO] Focuser is moving to position 10084 "
[2022-11-02T20:46:52.711 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:00#> "
[2022-11-02T20:46:52.761 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <P10106#> "
[2022-11-02T20:46:52.802 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - Abs Focuser position changed to 10106 State: Busy
[2022-11-02T20:46:52.803 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:01#> "
[2022-11-02T20:46:52.842 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <I1#> "
[2022-11-02T20:46:52.842 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:01#> "
[2022-11-02T20:46:52.883 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <I1#> "
[2022-11-02T20:46:54.863 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:01#> "
[2022-11-02T20:46:54.914 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <I0#> "
[2022-11-02T20:46:54.955 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "Focus position reached at 10106, starting capture in 0 seconds."
[2022-11-02T20:46:54.956 Atlantic Daylight Time INFO ][ org.kde.kstars.ekos.focus] - "Capturing image..."
[2022-11-02T20:46:54.958 Atlantic Daylight Time INFO ][ org.kde.kstars.indi] - MyFocuserPro2 : "[INFO] Focuser reached requested position. "
[2022-11-02T20:46:56.917 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:00#> "
[2022-11-02T20:46:57.012 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <P10084#> "
[2022-11-02T20:46:57.012 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - Abs Focuser position changed to 10084 State: Ok
[2022-11-02T20:46:59.005 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:06#> "
[2022-11-02T20:46:59.049 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <Z8.50#> "
[2022-11-02T20:47:01.047 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:00#> "
[2022-11-02T20:47:01.088 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <P10084#> "
[2022-11-02T20:47:05.116 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] CMD <:00#> "
[2022-11-02T20:47:05.157 Atlantic Daylight Time DEBG ][ org.kde.kstars.indi] - MyFocuserPro2 : "[DEBUG] RES <P10084#> "
[2022-11-02T20:47:07.189 Atlantic Daylight Time INFO ][ org.kde.kstars.ekos.focus] - "Image received."
[2022-11-02T20:47:07.190 Atlantic Daylight Time INFO ][ org.kde.kstars.ekos.focus] - "Detecting sources..."
[2022-11-02T20:47:08.076 Atlantic Daylight Time INFO ][ org.kde.kstars.ekos.focus] - "Detection complete."
[2022-11-02T20:47:08.078 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - Focus newFITS # 1 : Current HFR 3.89144 Num stars 242
[2022-11-02T20:47:08.080 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "matchStars: Inputs sized 100 100 found 46 matches, RMS dist 2.3"
[2022-11-02T20:47:08.081 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "RelativeHFR: sizes: 242 749 hfr: (4.97 (4.27) / 1.64 (1.43)) * 1.41 = 4.25"
[2022-11-02T20:47:08.081 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "RelativeHFR: orig 3.89144 computed 4.26935 relative 4.25412"
[2022-11-02T20:47:08.081 Atlantic Daylight Time INFO ][ org.kde.kstars.ekos.focus] - "Linear: solution @ 10084 = 4.25412 (expected 1.40694) delta=2.84718"
[2022-11-02T20:47:08.081 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - "Linear: points=[(10263, 3.21188, 1), (10243, 2.54503, 1), (10223, 1.8966, 1), (10203, 1.41915, 1), (10183, 1.40694, 1), (10163, 1.66297, 1), (10143, 2.0336, 1), (10123, 2.74896, 1), (10103, 3.32861, 1), (10083, 4.26049, 1)];iterations=10;duration=170;solution=10084;HFR=4.25412;filter='';temperature=8.75;focusalgorithm=3;backlash=0;curvefit=0;useweights=0"
[2022-11-02T20:47:08.089 Atlantic Daylight Time INFO ][ org.kde.kstars.ekos.focus] - "Focus procedure completed after 11 iterations."
[2022-11-02T20:47:08.090 Atlantic Daylight Time INFO ][ org.kde.kstars.ekos.focus] - Autofocus values: position, 10084 , temperature, 8.25 , filter, "" , HFR, 3.89144 , altitude, 49.4518
[2022-11-02T20:47:08.090 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - Stopping Focus
[2022-11-02T20:47:08.100 Atlantic Daylight Time DEBG ][ org.kde.kstars.ekos.focus] - Settled. State: "Complete"

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