AM5 guiding issues

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Christophe Godefroy

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2:10 AM (12 hours ago) 2:10 AM

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I’m a new NINA and PHD2 user, coming from the ASIAIR ecosystem. I’m using an AM5N with an external ZWO 120mm f/4 guide scope and an ASI120MM Mini.

I’m experiencing significant guiding issues and losing many frames. To be honest, I don’t really know where the problem is coming from.

Here are two nights of logs: https://openphdguiding.org/logs/dl/PHD2_logs_SyW2.zip

Whenever guiding starts to fail, I stop my sequence and redo a manual calibration when possible — but with a 6‑hour time‑zone difference from my remote site, this isn’t always easy.

With a fresh calibration, guiding seems OK (around 0.12 px total RMS), but it’s very unstable.