| Package | Description |
| color | Color image display package |
| ctio | Cerro Tololo optical astronomy packages |
| dataio | Data format conversion package (RFITS, etc.) |
| fast | Utilities for SAO FAST long-slit spectrograph |
| fitsutil | Utilities for FITS extension files |
| gemini | Utilites for the Gemini telescopes |
| gmisc | Gemini telescopes miscelaneous tasks |
| hectospec | Pipeline software for SAO Hectospec fiber spectrograph |
| hmisc | Other software for SAO Hectospec fiber spectrograph |
| ifocas | Source finding and processing package |
| images | General image processing package |
| imcnv | Image conversion package |
| kepler | PyKE for reducing Kepler data |
| language | The command language itself |
| lists | List processing package |
| mscred | Mosaic detector reduction package |
| nicproto | Fast CCD stellar photometry using QDPHOT |
| nmisc | NOAO miscellaneous tasks |
| noao | NOAO optical astronomy packages |
| obslog | SAO TDC observation logging package |
| obsolete | Obsoleted tasks |
| plot | Plot package |
| proto | Prototype or interim tasks |
| rvsao | SAO radial velocity package (working version) |
| svdfit | Remove spectrum background using singular value decomposition |
| system | System utilties package |
| tables | HST tables package |
| Pipeline sovtware for SAO TRES Echelle spectrograph |
| utilities | Miscellaneous utilities package |
| wcstools | SAO image world coordinate system utilities |
| xdimsum | Experimental Deep Infrared Mosaicing Software |
| xray | SAO PROS x-ray astronomy packages |