2015/07/30 (Thursday)
| 1300 | Tower temp at 278K. External pressure sensor reading 1.2E-5mbar. Isolate turbopump. Pressure rises to 3.0E-4mbar. Leak background rate before opening IVC is 4.0E-10 mbarL/s. |
|---|---|
| 1320 | Open leak checker to IVC. Leak rate rises to 1.9E-9 mbarL/s. |
| 1325 | Leak rate drops steadily to 1.7E-9 mbarL/s. Levelling out. |
| 1342 | Leak rate dropped to 1.5E-9 mbarL/s. Switch back to turbopumping IVC. |