Converting Healpix file to traditional fits format

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SUMMARY

The discussion centers on converting Healpix files to traditional FITS format, specifically for extracting data at designated longitudes, latitudes, and frequencies. The original poster, Lyuokdea, seeks assistance from individuals experienced with Healpix, as they are unfamiliar with the process. Another participant expresses a similar challenge, inquiring about converting FITS files to Healpix format. The need for clear methodologies or tools for these conversions is evident.

PREREQUISITES
  • Understanding of Healpix data structure
  • Familiarity with FITS file format
  • Knowledge of astronomical data extraction techniques
  • Experience with data manipulation tools like Python or Astropy
NEXT STEPS
  • Research methods for converting Healpix to FITS using Astropy
  • Explore the Healpix Python package for data manipulation
  • Learn about FITS file reading and writing techniques
  • Investigate astronomical data extraction libraries
USEFUL FOR

Astronomers, data scientists, and software developers working with astronomical data formats, particularly those needing to convert between Healpix and FITS formats.

Lyuokdea
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Not that this is really an astronomy question per se, but astronomers are most likely to know the answer.

I have a file containing a sky survey that is in healpix format, and I need to extract the data at certain longitudes and latitudes and at certain frequencies...

In a traditional fits format i could just read the corresponding rows and columns in the file, but I'm lost as of what to do with a healpix file.

If anybody with healpix experience could help, i'd appreciate it.

~Lyuokdea
 
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Hello,
I'm sorry I do not have the solution to your problem. But I have a similar problem. I wanted to know how to convert a FITS file to a Healpix file
 

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