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Max number of fields : how to exceed the 2025 limit ?

  • November 25, 2022
  • 2 replies
  • 294 views
T
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Dear all,

I’m working on a project of ultra-precise micro-arcsecond relative astrometry space observatory (Theia). 

Especially, I need to map the image plane (0.5°x0.5°) with a very high accuracy. For instance, I have to study the variations of positions of the PSF (with CENX/CENY) due to some perturbations (distortion, tilts of the mirrors...).

By default, the number of fields is limited to 2025 for my premium version, but I would need 100x100 fields.

It’s rather easy to generate such a new grid, but the parameter “i” (field number) of CENX/Y refers to the (default) field table.

Is there a way to use CENX/Y with this new grid ?

Many thanks,

Thierry.

Best answer by Mark.Nicholson

Hi Thierry,

 

I’d try a Universal Plot for this. You can vary field and step size to be whatever you want, I think.

    2 replies

    Mark.Nicholson
    Luminary
    Forum|alt.badge.img+3
    • Mark.Nicholson
    • Luminary
    • Answer
    • November 26, 2022

    Hi Thierry,

     

    I’d try a Universal Plot for this. You can vary field and step size to be whatever you want, I think.

    MichaelH
    T
    Forum|alt.badge.img+2
    • Thierry.Lepine
    • Author
    • Single Emitter
    • November 29, 2022

    Many Thanks Mark.

    I will try.

    Thierry.

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