Late entry.

The pressures as of today (March 1st):
HAM7: ~4.7E-7 Torr
HAM8: ~1.3E-6 Torr
Corner: ~1.1E-7 Torr
EX: ~2.2E-8 Torr

Activities on 2-29:
- At the corner, IP1, IP2, IP3, IP4, IP14 ion pumps were valved in
- The controller of IP1 was needed to be replaced, as the current was very unstable. After switching it with the former H2 IP5's controller, it went back to normal
- A safety incident happened with the HAM7 RGA pumpdown: a castor wheel of a Pfeiffer cart fell off, and the cart fell over. HAM7 RGA needs at least a weekend-long pumpdown and bakeout; no further consequences
- Corner (and HAM7) further schedule: Turbo pumps valve-out: 3-4; RGA scan #2: 3-4; GV5 & GV7 open: 3-4; HAM7 and HAM8 valve-in: ~3-6
- EX further schedule: RGA scan #1: 3-1; Ion pump valve-in: 3-1; Turbo pump valve-out: 3-4; RGA scan #2: 3-4; GV20 open: 3-4
- HAM8 was leak tested; all the joints are tight, see in more detail: https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=76063