QUBIC

Minutes:

• PCA of the full azimuth scan TOD (forebaffle covered) (Noah):
  - the analysis was done with respect to time and shows a clear correlation but with the expected shape only at the 5th eigenvalue
  - an improvement could be to do it w.r.t. azimuth and then temperature, etc.
  - even better would be multi-dimensional PCA in order to treat all trends at the same time

• Origin of azimuth correlation (Steve):
  - most of the azimuth correlation seems to come from the Earth magnetic field
  - see the double peaks in the azimuth scans going through 0° or 180°

• Solving the convolution issue is urgent