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Find Misalignment
How to find polar alignment errors.
You can use
pocs run alignment to take a series of pictures that samples the sky. This procedure will produce a series of pictures for use in the analysis steps below. There are a number of configurable options but the default should be fine for a first step:$ pocs run alignment --help
Usage: pocs run alignment [OPTIONS]
Runs POCS in alignment mode.
Not specifying coordinates is the same as the following: -c 40,90 -c 55,60 -c 55,120 -c 70,210 -c 70,330
╭─ Options ────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ --coords -c TEXT Alt/Az coordinates to use, e.g. 40,55 [default: None] |
│ --exptime -e FLOAT Exposure time in seconds. [default: 30.0] │
│ --num-exposures -n INTEGER Number of exposures. [default: 5] │
│ --field-name -f TEXT Name of field. [default: PolarAlignment] │
│ --help Show this message and exit. │
╰──────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
- Beginner's tutorial on how to create, open and run a Jupyter notebook: https://www.dataquest.io/blog/jupyter-notebook-tutorial/
- Download the Jupyter notebook file
PANOPTES - 03 Drift Observation Polar Alignment.ipynbin this link to your local laptop/computer. - Follow the steps in the Jupyter Notebook, run one cell at a time consecutively until you reach the end of the notebook.
- Use the alt (deg) and az (deg) values obtained from the notebook to do the polar alignment as described in Fix Misalignment.
Last modified 3mo ago