| Status | Run 77 preparation |
| Setup | Fridge closed, pumping on IVC, preparing for cooldown |
| 1420 | Turbo on IVC = 16 nbar |
| 1425 | Check contents of warm LN2 Trap 1: 5.1 (10.6 on G1) mbar. Pump it out with the scroll pump. |
| 1430 | G1 = 2.1 mbar and stable, stop pumping on trap 1. |
| 1432 | Check contents of warm LN2 Trap 2: 3.8 mbar. Pump it out with the scroll pump. |
| 1435 | G1 = 1.6 mbar and stable, stop pumping on trap 2. |
| 1137 | Insert cold trap 1 into the LN2 bath, fill bath |
| 1444 | Turn on the 3He pump |
| 1447 | Begin cryocleaning through cold trap 1 |
| 1451 | Open V6 to 12.1% to start flow |
| 1457 | Open V6 to 12.3% to restart flow |
| 1507 | Open V6 to 12.4% to restart flow |
| 1545 | Take the LN2 dewar to be filled completely for the cooldown next week. |
| 1603 | Stop cryocleaning through cold trap 1, pump mixture to dump |
| 1611 | Open V6 to 30% |
| 1620 | G1 = 1.8, P1 < 0.1 mbar, close all valves, leaving 703.6 mbar in the dump |
| | Barometric pressure = 30.39“ (source is https://w1.weather.gov/data/obhistory/KMSP.html.) Corrected dump pressure = 719.5 mbar |