| 100 Series | General: Telescope movement and Photoelectric Photometery | |
| 200 Series | Envoronmental: Control and Measurement Information | |
| 300 Series | Spectroscopic Observations:Control and data handling | |
| 400 Series | Engineering and Telescope Networking | |
| 500 Series | CCD Imaging: Control and data handling |
- Indicates new in ATIS2000
- Indicates changes from ATIS93