Two major accomplishments tonight:

1. David C finally Aluminized his mirror in our vacuum chamber. Long story with mishaps that included pyrolized Sharpie marks on a previous quick and dirty aluminizationsfor attempt, and a Varian high-vacuum gauge that got stuck for a while. But he was persistent and diligent and forgiving as well.

2. Rich K appears to have finished parabolizing his 10″ f/7 mirror, which he had started about 20 years ago under the guidance of my predecessor, Jerry Schnall. If my Foucault knife-edge measurements are correct then it’s 1/15 lambda which is great.