| IMPORTANT DATES | |
| Guest Observer Proposals Due (Cycle 1) | February 2, 1998 |
| Next Users' Committee Meeting | |
| AXAF launch | Under Review (check website for updates) |
| Performance and Verification | First 2 months |
| GTO Observations (full time) | Second 2 months |
| GO Observations (70% time) | Next 9 months |
| AXAF Cycle 1 ends | 13 months after launch |
| NASA Research Announcement Cycle 2 | |