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    • Fast spectral synthesis and emission-line fitting of DESI spectra.
      Python
      BSD 3-Clause "New" or "Revised" License
      219162Updated Jul 25, 2026Jul 25, 2026
    • DESI Targeting
      Python
      BSD 3-Clause "New" or "Revised" License
      2624175Updated Jul 23, 2026Jul 23, 2026
    • LSS

      Public
      Codes used to create LSS catalogue and randoms
      Jupyter Notebook
      BSD 3-Clause "New" or "Revised" License
      4020154Updated Jul 23, 2026Jul 23, 2026
    • specex

      Public
      DESI spectrograph PSF fitting
      C++
      BSD 3-Clause "New" or "Revised" License
      4053Updated Jul 22, 2026Jul 22, 2026
    • Interface, ingestion and Spin configuration for the spectroscopic production database.
      Python
      BSD 3-Clause "New" or "Revised" License
      0010Updated Jul 16, 2026Jul 16, 2026
    • desispec

      Public
      DESI spectral pipeline
      Python
      BSD 3-Clause "New" or "Revised" License
      24413544Updated Jul 15, 2026Jul 15, 2026
    • desida

      Public
      Scripts and configuration for DESI Data Assemblies and Releases.
      Python
      BSD 3-Clause "New" or "Revised" License
      1752Updated Jul 14, 2026Jul 14, 2026
    • QuasarNP

      Public
      Pure Numpy implementation of QuasarNet
      Python
      MIT License
      0000Updated Jul 10, 2026Jul 10, 2026
    • Fiber assignment code for DESI
      C++
      BSD 3-Clause "New" or "Revised" License
      119433Updated Jul 8, 2026Jul 8, 2026
    • Scripts and code for DESI Survey Operations
      Python
      BSD 3-Clause "New" or "Revised" License
      10283Updated Jul 7, 2026Jul 7, 2026
    • Code for desi survey planning and implementation
      Python
      BSD 3-Clause "New" or "Revised" License
      72214Updated Jul 6, 2026Jul 6, 2026
    • DESI Nightwatch: online data quality assurance
      Jupyter Notebook
      BSD 3-Clause "New" or "Revised" License
      22515Updated Jun 20, 2026Jun 20, 2026
    • The DESI data model.
      Python
      BSD 3-Clause "New" or "Revised" License
      105120Updated Jun 11, 2026Jun 11, 2026
    • desitest

      Public
      Testing coordination for DESI code
      Jupyter Notebook
      BSD 3-Clause "New" or "Revised" License
      10120Updated Jun 4, 2026Jun 4, 2026
    • desiutil

      Public
      General DESI utilities, shell scripts, desiInstall, etc.
      Python
      BSD 3-Clause "New" or "Revised" License
      11442Updated Jun 2, 2026Jun 2, 2026
    • DESI data transfer infrastructure.
      Python
      BSD 3-Clause "New" or "Revised" License
      1010Updated May 29, 2026May 29, 2026
    • DESI GFA off-line reduction/analysis pipeline
      Python
      BSD 3-Clause "New" or "Revised" License
      2120Updated May 29, 2026May 29, 2026
    • Maintain the default set of DESI product versions and environment modules loaded.
      Roff
      BSD 3-Clause "New" or "Revised" License
      1130Updated May 28, 2026May 28, 2026
    • desiconda

      Public
      Tools to install DESI dependencies from scratch.
      Shell
      BSD 3-Clause "New" or "Revised" License
      9192Updated May 18, 2026May 18, 2026
    • desigal

      Public
      DESI Galaxy Science measurements
      Python
      BSD 3-Clause "New" or "Revised" License
      23111Updated May 16, 2026May 16, 2026
    • desisim

      Public
      DESI simulations
      Python
      BSD 3-Clause "New" or "Revised" License
      2220364Updated May 15, 2026May 15, 2026
    • Scripts to automate coaddition of DESI spectra across cameras.
      Jupyter Notebook
      BSD 3-Clause "New" or "Revised" License
      0031Updated May 6, 2026May 6, 2026
    • DESI Night Log webapp for observers
      Python
      BSD 3-Clause "New" or "Revised" License
      01110Updated Apr 30, 2026Apr 30, 2026
    • desimodel

      Public
      Code that reads and processes the desimodel data files.
      Python
      BSD 3-Clause "New" or "Revised" License
      53301Updated Apr 18, 2026Apr 18, 2026
    • fpoffline

      Public
      Tools for analyzing focal plane performance that run outside the online ICS environment
      Jupyter Notebook
      1050Updated Mar 31, 2026Mar 31, 2026
    • prospect

      Public
      DESI spectral visualization tools
      Python
      BSD 3-Clause "New" or "Revised" License
      1014170Updated Mar 20, 2026Mar 20, 2026
    • simqso

      Public
      Module for generating simulated quasar spectra
      Python
      BSD 3-Clause "New" or "Revised" License
      14030Updated Mar 19, 2026Mar 19, 2026
    • desimeter

      Public
      DESI coordinates and transformations
      Python
      BSD 3-Clause "New" or "Revised" License
      52260Updated Mar 19, 2026Mar 19, 2026
    • surveysim

      Public
      Simulate afternoon planning and nightly tile scheduling for the DESI survey
      Python
      BSD 3-Clause "New" or "Revised" License
      6143Updated Mar 19, 2026Mar 19, 2026
    • Scratch work for porting spectroperfectionism extractions to GPUs
      Jupyter Notebook
      BSD 3-Clause "New" or "Revised" License
      3281Updated Mar 18, 2026Mar 18, 2026
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