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25 Jul 2018
Glad to announce of release of INDI Library v1.7.4 on 2018-07-25. A few drivers were added in this release as we continue to improve & stabilize existing drivers.
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TOPIC: indi-eqmod always shows side of pier: WEST

indi-eqmod always shows side of pier: WEST 2 months 6 days ago #27409

  • alacant
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Hi everyone

Un-park and slew so that the telescope is on the west of the pier:

steve@steve-ubuntu:~$ indi_getprop *.TELESCOPE_PIER_SIDE.*
EQMod Mount.TELESCOPE_PIER_SIDE.PIER_WEST=On
EQMod Mount.TELESCOPE_PIER_SIDE.PIER_EAST=Off

Slew so that it is on the east:
steve@steve-ubuntu:~$ indi_getprop *.TELESCOPE_PIER_SIDE.*
EQMod Mount.TELESCOPE_PIER_SIDE.PIER_WEST=On
EQMod Mount.TELESCOPE_PIER_SIDE.PIER_EAST=Off

log attached

Any help most gratefully received,
TIA, Steve
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ubuntu 18.04
700d, eq6, t7m
Last Edit: by alacant.

indi-eqmod always shows side of pier: WEST 2 months 5 days ago #27426

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Ah, ok. So it matters where Dec is pointing too? If I slew so the telescope is on the east side of the pier, the Dec has to be pointing west for the pier side to return correctly?
TIA

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ubuntu 18.04
700d, eq6, t7m

indi-eqmod always shows side of pier: WEST 2 months 5 days ago #27432

  • kengs
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I suspect this reflects EQMOD's ASCOM origins. In ASCOM SideOfPier is acknowledged as a misnomer. It more closely represents the position of the declination axis. On the Dec axis there are two sets of coordinates ranging from -90 to +90 so a given declination could be in two different places (which in turn can affect RA). So ASCOM Side of Pier indicates whether the declination is the one to the east of the pole or west of the pole.
I'm not sure what INDI expects the SideOfPier to indicate.

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Ubuntu 16.04 AMD64 VM, RPi3 Ubuntu Mate 16.04, Windows 10 AMD64, Ubuntu 16.04 AAEON UP Core
Avalon M-Uno, EQ6 Pro, Atik420, ASI1600MM-C, ASI120MM-S, DBK21AU04, ZWO EFW, Optec TCFSi
Vixen R150S, GSO RC8, ST80

indi-eqmod always shows side of pier: WEST 2 months 5 days ago #27435

This issue was discussed at length here: www.indilib.org/forum/mounts/1883-eqmod-...scope-pier-side.html

You can see the rationale and the same convention the EQMod at ASCOM was adopted.
The following user(s) said Thank You: alacant

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Jasem Mutlaq
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indi-eqmod always shows side of pier: WEST 1 month 3 weeks ago #27819

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Hi everyone
We found the issue. The fix is described here:
www.indilib.org/forum/mounts/1883-eqmod-...pier-side.html#27818
HTH and clear skies,
Steve

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ubuntu 18.04
700d, eq6, t7m
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