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Re: Minimum duration for Pulseguide?

 

The minimum duration will be based on minimum step size of the mount. Step sizes are: 0.375 arcsec/step for Titan,? 0.5625 for G11, and 1.13 for GM8.

If the guiding rate is 0.5x, then the movement for 50ms pulse is 0.375 arcsecs. A Titan can move that much, but for a G11 or GM8 the step is too large. For a G11 at 0.5x rate the minimum pulse will be 75ms and for GM8 - 150ms.

Regards,

? ? -Paul
?

On Wed, May 12, 2021 at 04:57 PM, Stephen Migol wrote:
Is there a defined minimum duration for Pulseguide?

Is this limited by:
1. RS232 serial port
2. Ethernet
3. Motor type
4. Gemini 1 vs 2

I'm curious about the reliability of triggering minimum movements of 50 to 80 milliseconds.? I am trying to guide at long focal lengths and need to nudge the mount to control football stars in DEC.
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