| # | Title | Status | Researcher | Start date | End date | Requested data types |
|---|---|---|---|---|---|---|
| 248 | 1750+18 Supernova 1998bp in NGC 6495 | Archived | AAVSO | 1998-04-29 (UTC) | 1998-05-01 (UTC) | Spectroscopy, Photometry |
| 247 | 1224-22 Supernova 1998bn in NGC 4462 | Archived | AAVSO | 1998-04-17 (UTC) | 1998-04-28 (UTC) | Photometry |
| 246 | 1151+55 Supernova 1998aq in NGC 3982 | Archived | AAVSO | 1998-04-13 (UTC) | 1998-04-15 (UTC) | Photometry |
| 245 | 1815-27 Nova Sagittarii 1998 | Archived | AAVSO | 1998-03-23 (UTC) | 1998-11-23 (UTC) | Spectroscopy, Photometry |
| 244 | 1140+48 Supernova 1998S in NGC 3877 AND Fading of 1921+50 CH Cygni | Archived | AAVSO | 1998-03-02 (UTC) | 1998-03-13 (UTC) | Photometry |
| 243 | Supernova 1997dq in NGC 3810 | Archived | AAVSO | 1997-11-02 (UTC) | 1997-11-06 (UTC) | Photometry |
| 241 | Request to monitor 2138+43 SS Cygni for observations with HST, EUVE, and RXTE | Archived | AAVSO | 1997-10-10 (UTC) | 1997-12-31 (UTC) | Photometry |
| 239 | Outburst of 2328+48 Z Andromedae and Request to Monitor 2138+43 SS Cygni and 1813+49 AM Herculis | Archived | AAVSO | 1997-06-06 (UTC) | 1997-06-06 (UTC) | Spectroscopy, Photometry |
| 240 | 1747-30 Nova Scorpii 1997 [V1141 Sco] | Archived | AAVSO | 1997-06-05 (UTC) | 1997-06-09 (UTC) | Spectroscopy |
| 238 | Supernova 1997bp in NGC 4680 | Archived | AAVSO | 1997-04-06 (UTC) | 1997-04-07 (UTC) | Spectroscopy, Photometry |
