- acstools ( spacetelescope stsci-hack )
- astroimtools ( bradley spacetelescope )
- Astropy ( astropy astrofrog saimn )
- astropy-regions ( astropy bradley )
- astrowidgets ( eteq astropy mwcraig )
- calcos ( nadia.dencheva spacetelescope )
- ci_watson ( jhunkeler spacetelescope )
- corazon ( mustaric )
- costools ( nadia.dencheva spacetelescope )
- cubeviz ( spacetelescope rosteen )
- exovetter ( mustaric m-dallas )
- ginga ( ejeschke )
- jdaviz ( eteq javerbukh )
- mosviz ( eteq astrofrog )
- pysynphot ( spacetelescope )
- reftools ( spacetelescope )
- specreduce ( tepickering )
- spherical-geometry ( jhunkeler zacharyburnett )
- stak-notebooks ( jhunkeler SaraOgaz )
- stginga ( eteq spacetelescope )
- stsci-package-template ( spacetelescope )
- stsci.stimage ( spacetelescope zacharyburnett )
- stsci.tools ( jhunkeler spacetelescope )
- stsynphot ( spacetelescope )
- synphot ( spacetelescope )
- wss_tools ( spacetelescope kulpster )
