5.3 Experiments Deployed and Recovered - 1998 and 1999
| Vent/Marker | Experiment/Instrument | Dive Deployed | Dive Recovered |
| Mkr-33 | MTR 4130 | R461 | R483 |
| Mkr-33 | BacTrps#9&12 | R462 | R483 |
| Mkr-33 | OsmoSampler | R477 | R483 |
| Mkr-33 | Time Lapse Camera | R478 | R484 |
| Mkr-33 | BacTrps#40,41,42,43 | R484 | R491 (40, 43) |
| Mkr-33 | Grn&Cu OsmoSampler | R483 | n/a * |
| Mkr-33 | 2 Fe OsmoAnalyzers | R483 | R491 |
| Mkr-33 | BioOsmoSampler | R491 | n/a * |
| Mkr-33 | OsmoAnalyzer | R495 | n/a * |
| Mkr-33 | Time Lapse Camera | R501 | n/a * |
| Mkr-113 | VEMCO | Alvin 3245(deployed) R461(repositioned) | R495 |
| Mkr-113 | BacTrap#4 | R461 | n/a * |
| Mkr-113 | BacTraps#19,20,21 | R464 | R496 (20,21) |
| Mkr-N2 Milky | OsmoSampler | R474 | 99 dive#? |
| Mkr-N2 Milky | BacTrap#35 | R476 | n/a * |
| Mkr-N4 Cloud | BacTraps#14,15 | R462 | R484 |
| Mkr-N4 Cloud | BacTraps#36,37,38,39 | R484 | R491 |
| Mkr-N4 Cloud | MTR 0942 | R461 | R484 |
| Mkr-N6 Cloud | MTR 3157 & VEMCO 1108 (taped together) | R491 | n/a * |
| Mkr-N41 | MTR 4126 | R474 | R491 |
| Mkr-N41 | MTR 3041 ? | R491 | n/a * |
| Bag City Vent | MTR | R495 | n/a * |
| Castle Vent | BacTraps#22,23,24 | R464 | n/a * |
| Crack Vent | VEMCO | Alvin 3245(deployed) R461(repositioned) | n/a * |
| Easy Vent | BacTrap#17 | R463 | n/a * |
| Gollum Vent | MTR 4128 | R471 | R502 |
| Gollum Vent | BacTrap #45 | R503 | n/a * |
| Gollum Vent | BacTraps#32,33,34 | R471 | R503 (2 -#'s?) |
| Hell Vent | Hobo | R502 | n/a * |
| Hell Vent | Hobo | 98 dive #? on osmo | 502 |
| Hillock/Phoenix | BacTraps#25,26 | R466 | n/a * |
| Inferno Vent | Hobo 128 | R503 | n/a * |
| Inferno Vent | Osmosampler (didn't work) | R503 | n/a * |
| Inferno Vent | HOBO 137 | Alvin 3245 | R502 |
| Inferno Vent | VEMCO 98-223 | Alvin 3245 | n/a * |
| Magnesia | OsmoSampler | R499 | n/a * |
| Milky Vent | BacTrap#35 | 98 dive #? | n/a * |
| Mushroom Vent | BacTraps#29,30,31 | R471 | n/a * |
| Nascent Vent | MTR 4108 | R478 | R491 |
| Nascent Vent | MTR 3175 | R491 | n/a * |
| ROPOS Vent | BacTrps#27,28 | R466 | n/a * |
| Shepherd Vent CASM | VEMCO 98-1113-214 | R480 | R497 |
| Virgin Vent | Hobo 130 | R503 | n/a * |
| Virgin Vent | HOBO 129 | Alvin3246 | R503 |
| T&S Spires CASM | HOBO 130 | R480 | R497 |
| T&S Spires CASM | MTR 3017 | R497 | n/a * |
| * non applicable - experiment not recovered yet. |