×

INDI Library v1.9.6 Released (21 May 2022)

Bi-monthly INDI Library released with new drivers and bug fixes.

Meridian flipping the wrong way

  • Posts: 41
  • Thank you received: 4
After a couple of years of using EKOS and my CEM25p mount with no problems around a meridian flip, the last few times I've used it has failed, three or four times at least!
This has coincided with the update to KStars 3.5.7.

When looking south, it seems like the mount tries to perform a meridian flip from west side to east side by rotating the mount in the wrong direction, and so it crashes into the tripod legs.

The last time it did this I captured some logs. I think this is the correct section.

Any clues would be much appreciated as this is driving me up the wall!

Alex

[2022-02-22T22:55:59.470 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+3359849464802343#> "
[2022-02-22T22:55:59.471 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 93.329150, haAxis 18.000651, axisHa -0.000651, ha 0.000438, decPa 93.329150, pole angle pierSide WEST "
[2022-02-22T22:55:59.471 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:55:59.471 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-0119849432240100#> "
[2022-02-22T22:55:59.473 GMT DEBG ][     org.kde.kstars.ekos.mount] - Meridian flip planned with LST= "08h 57m 21s"  scope RA= "08h 57m 20s"  ha= 0.000188917 , meridian diff= 0 , hrstoFlip= -0.000188917 , flipDelayHrs= 0 ,  "Pier Side: West (pointing East)"
[2022-02-22T22:55:59.473 GMT DEBG ][     org.kde.kstars.ekos.mount] - Setting meridian flip status to  "FLIP_PLANNED"
[2022-02-22T22:55:59.473 GMT DEBG ][     org.kde.kstars.ekos.mount] - meridianFlipStatusChanged  "FLIP_PLANNED"
[2022-02-22T22:55:59.475 GMT DEBG ][     org.kde.kstars.ekos.mount] - Received capture meridianFlipStatusChange  "FLIP_ACCEPTED"
[2022-02-22T22:55:59.475 GMT DEBG ][     org.kde.kstars.ekos.mount] - meridianFlipStatusChanged  "FLIP_ACCEPTED"
[2022-02-22T22:56:00.374 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:00.435 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200210931#> "
[2022-02-22T22:56:00.435 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEA#> "
[2022-02-22T22:56:00.492 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+3359849464803538#> "
[2022-02-22T22:56:00.492 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 93.329150, haAxis 18.000983, axisHa -0.000983, ha 0.000769, decPa 93.329150, pole angle pierSide WEST "
[2022-02-22T22:56:00.493 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:56:00.542 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-0119849432240120#> "
[2022-02-22T22:56:00.544 GMT INFO ][     org.kde.kstars.ekos.mount] - Meridian flip: slewing to RA= "08h 57m 20s" DEC= "-03° 19' 45\""  Hour Angle  "00h 00m 00s"
[2022-02-22T22:56:00.544 GMT DEBG ][     org.kde.kstars.ekos.mount] - Setting meridian flip status to  "FLIP_RUNNING"
[2022-02-22T22:56:00.544 GMT DEBG ][     org.kde.kstars.ekos.mount] - meridianFlipStatusChanged  "FLIP_RUNNING"
[2022-02-22T22:56:00.544 GMT INFO ][     org.kde.kstars.ekos.mount] - "Meridian flip started."
[2022-02-22T22:56:00.605 GMT DEBG ][     org.kde.kstars.ekos.mount] - Slewing to RA= "08h 57m 20s" DEC= "-03° 19' 45\""
[2022-02-22T22:56:00.605 GMT DEBG ][     org.kde.kstars.ekos.mount] - Initial HA  0.000648239 , flipDelayHrs  0 MFStatus  "FLIP_RUNNING"
[2022-02-22T22:56:00.610 GMT INFO ][     org.kde.kstars.ekos.align] - Target updated to JNow RA: "08h 57m 20s" DE: "-03° 19' 45\""
[2022-02-22T22:56:00.610 GMT DEBG ][           org.kde.kstars.indi] - ISD:Telescope sending coords RA: "08h 57m 20s" ( 8.95549 ) DE: "-03° 19' 45\"" ( -3.32915 )
[2022-02-22T22:56:00.611 GMT INFO ][     org.kde.kstars.ekos.mount] - "Meridian flip slew started..."
[2022-02-22T22:56:00.675 GMT INFO ][     org.kde.kstars.ekos.align] - "Slew detected, suspend solving..."
[2022-02-22T22:56:00.678 GMT WARN ][                       default] - QFSFileEngine::open: No file name specified
[2022-02-22T22:56:00.682 GMT WARN ][                       default] - QIODevice::write (QFile, ""): device not open
[2022-02-22T22:56:00.683 GMT INFO ][     org.kde.kstars.ekos.align] - "Aborting..."
[2022-02-22T22:56:00.685 GMT INFO ][     org.kde.kstars.ekos.align] - "Solver aborted after 10.76 seconds."
[2022-02-22T22:56:00.740 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:Sr32239750#> "
[2022-02-22T22:56:00.741 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <31> "
[2022-02-22T22:56:00.741 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:Sd-01198494#> "
[2022-02-22T22:56:00.853 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <31> "
[2022-02-22T22:56:00.854 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:MS#> "
[2022-02-22T22:56:01.074 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <31> "
[2022-02-22T22:56:01.075 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:01.124 GMT INFO ][     org.kde.kstars.ekos.align] - "Child solver: 5 did not solve or was aborted"
[2022-02-22T22:56:01.134 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200210931#> "
[2022-02-22T22:56:01.234 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:01.294 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200210931#> "
[2022-02-22T22:56:01.388 GMT INFO ][     org.kde.kstars.ekos.align] - "Child solver: 4 did not solve or was aborted"
[2022-02-22T22:56:01.395 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:01.460 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200220931#> "
[2022-02-22T22:56:01.463 GMT INFO ][           org.kde.kstars.indi] - iOptron CEM25 :  "[INFO] Slewing to RA:  8:57:20 - DEC: -3:19:45 "
[2022-02-22T22:56:01.519 GMT INFO ][     org.kde.kstars.ekos.align] - "Child solver: 2 did not solve or was aborted"
[2022-02-22T22:56:01.545 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:01.606 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200220931#> "
[2022-02-22T22:56:01.606 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEA#> "
[2022-02-22T22:56:01.663 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+3358829864785444#> "
[2022-02-22T22:56:01.663 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 93.300828, haAxis 17.995957, axisHa 0.004043, ha 0.001090, decPa 93.329150, pole angle pierSide WEST "
[2022-02-22T22:56:01.663 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:56:01.723 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-0119849432240140#> "
[2022-02-22T22:56:02.176 GMT INFO ][     org.kde.kstars.ekos.align] - "Child solver: 3 did not solve or was aborted"
[2022-02-22T22:56:02.724 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:02.785 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200220931#> "
[2022-02-22T22:56:02.787 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEA#> "
[2022-02-22T22:56:02.843 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+3203571063660187#> "
[2022-02-22T22:56:02.844 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 88.988083, haAxis 17.683385, axisHa 0.316615, ha 0.001413, decPa 93.329150, pole angle pierSide WEST "
[2022-02-22T22:56:02.844 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:56:02.903 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-0067623032673730#> "
[2022-02-22T22:56:03.673 GMT INFO ][     org.kde.kstars.ekos.align] - "Child solver: 1 did not solve or was aborted"
[2022-02-22T22:56:03.677 GMT INFO ][     org.kde.kstars.ekos.align] - "Solver Failed."
[2022-02-22T22:56:03.720 GMT WARN ][        org.kde.knotifications] - Failed to play sound with canberra: Not available
[2022-02-22T22:56:03.904 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:03.967 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200220931#> "
[2022-02-22T22:56:03.968 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEA#> "
[2022-02-22T22:56:04.024 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+2943956261929410#> "
[2022-02-22T22:56:04.024 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 81.776561, haAxis 17.202614, axisHa 0.797386, ha -0.118700, decPa 91.878417, pole angle pierSide WEST "
[2022-02-22T22:56:04.025 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:56:04.085 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+0144601234107420#> "
[2022-02-22T22:56:05.086 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:05.146 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200220931#> "
[2022-02-22T22:56:05.149 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEA#> "
[2022-02-22T22:56:05.204 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+2701648860169792#> "
[2022-02-22T22:56:05.205 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 75.045800, haAxis 16.713831, axisHa 1.286169, ha -0.516618, decPa 85.983300, pole angle pierSide WEST "
[2022-02-22T22:56:05.206 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:56:05.264 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+0360947535550750#> "
[2022-02-22T22:56:06.266 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:06.325 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200220931#> "
[2022-02-22T22:56:06.325 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEA#> "
[2022-02-22T22:56:06.394 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+2437706258554421#> "
[2022-02-22T22:56:06.394 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 67.714061, haAxis 16.265117, axisHa 1.734883, ha -0.917212, decPa 79.973681, pole angle pierSide WEST "
[2022-02-22T22:56:06.395 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:56:06.459 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+0780658638495040#> "
[2022-02-22T22:56:07.455 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:07.517 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200220931#> "
[2022-02-22T22:56:07.519 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEA#> "
[2022-02-22T22:56:07.574 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+2178089656823656#> "
[2022-02-22T22:56:07.574 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 60.502489, haAxis 15.784349, axisHa 2.215651, ha -1.734742, decPa 68.315039, pole angle pierSide WEST "
[2022-02-22T22:56:07.575 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:56:07.641 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+0997004939938350#> "
[2022-02-22T22:56:08.634 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:08.696 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200220931#> "
[2022-02-22T22:56:08.697 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEA#> "
[2022-02-22T22:56:08.759 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+1918474855092890#> "
[2022-02-22T22:56:08.759 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 53.290967, haAxis 15.303581, axisHa 2.696419, ha -2.135333, decPa 62.305419, Hour Angle pierSide WEST "
[2022-02-22T22:56:08.760 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:56:08.813 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+1213353041381670#> "
[2022-02-22T22:56:09.815 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GLS#> "
[2022-02-22T22:56:09.876 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <-008923506200220931#> "
[2022-02-22T22:56:09.878 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEA#> "
[2022-02-22T22:56:09.934 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+1680495153362101#> "
[2022-02-22T22:56:09.934 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] getPierSide pole Axis 46.680419, haAxis 14.822806, axisHa 3.177194, ha -2.535926, decPa 56.295750, Hour Angle pierSide WEST "
[2022-02-22T22:56:09.935 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:GEC#> "
[2022-02-22T22:56:09.995 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <+1429697542824970#> "
[2022-02-22T22:56:10.874 GMT DEBG ][           org.kde.kstars.indi] - ISD:Telescope: Aborted.

[2022-02-22T22:56:10.877 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] CMD <:Q#> "
[2022-02-22T22:56:11.207 GMT DEBG ][           org.kde.kstars.indi] - iOptron CEM25 : "[DEBUG] RES <31> "
[2022-02-22T22:56:11.211 GMT DEBG ][     org.kde.kstars.ekos.mount] - Mount status changed from  "Slewing"  to  "Idle"
[2022-02-22T22:56:11.240 GMT INFO ][           org.kde.kstars.indi] - iOptron CEM25 :  "[INFO] Slew/Track aborted. "
4 months 1 week ago #80830

Please Log in or Create an account to join the conversation.

  • Posts: 14
  • Thank you received: 3
From what I understand, Ekos just commands a goto to the same target it has been tracking, and relies on the mount's built-in logic to do the flip if the target is past the meridian. Could the mount be confused about its RA/Dec position or hemisphere?
4 months 1 week ago #80832

Please Log in or Create an account to join the conversation.

  • Posts: 41
  • Thank you received: 4
Having now looked at it in the daylight, it's working correctly.

I think the problem was that the worm tensioner was too tight, preventing the mount from lifting against gravity. It's so sensitive on this mount!

I'm sure it originally tried to turn the wrong way at one point, but maybe I was mistaken in the dark. Both EKOS and the mount had the correct GPS coordindates and the correct hemisphere.
Let's see if it works next time I try to use it for real

Alex
4 months 1 week ago #80844

Please Log in or Create an account to join the conversation.

Time to create page: 0.603 seconds