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How can I save a 3-D SPIRE FTS data cube as a 1-D spectrum?
Posted by Mark Kidger, Last modified by Mark Kidger on 22 May 2019 02:44 PM

If your observation is a spectral map, the products are 3-D spectral cubes and not 1-D spectra. This makes saving data more difficult, as no tools were implemented in HIPE to save a 3-D structure as a text file.

So, unlike for single point spectra, you cannot you cannot use the "Save to text file" option on a spectral cube. So, first you must extract a 1-D spectrum from a pre-selected cube pixel (aka spaxel).

The Herschel Science Centre has created a short videotutorial that explains how to do this. You can find it on the Herschel Academy YouTube channel at:

Saving a 3-D SPIRE FTS spectral cube as a 1D spectrum

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