| 1130 | Filled LN2 cold trap. |
| 1400 | Start LHe transfer. Helium liquid level 6.0%. |
| 1435 | Stop LHe transfer. Helium liquid level 73.4%. Looks like we are shy by 10 l. Nothing unusual occured during this run that could warrant such a large boil-off. The only conclusion is that Prax-Air supplied us with 50 l rather than 60 l. This will cause us problems. |
| 2046 | Stop flashing detector. |
| 2230 | Tower temperature falling very slowly. Turn on still heater, power 2.0 mW, to improve circulation. |
| 2330 | Still heater did the trick. Tower temperature 55 mK. |
| | Start taking data overnight with autorun: take data for 60 minutes; flash for 6 s; cool down for 15 minutes. |