QUBIC

Minutes:

• Running the instrument (Sabrina):
  - taking I-V curves
  - NEP analysis
  - creating a simplified documentation for others to use the instrument
  - could help people getting used to the instrument, in order to start shifts

• Wind on site:
  - found a library that tackles wind prediction (?) (Ismail)
  - wind blows in a consistent direction (Steve)

• Scanning strategy (Dorian):
  - need to fix velocity instead of position
  - sky dip plot: use real velocity profile to model scanning strategy

• Atmosphere (Eugène):
  - managed to run the code and get some plots
  - need to link the variance of the precipitable water vapor (PWV) with PWV density by reading papers but didn't find Tom's formula
  - close to going 3D

• Machine Learning (Gabriel):
  - use ML to characterise the error after doing mapmaking
  - created about 15 variables to get an understanding of Prinicple Component Analysis (PCA), which is finding the right variable to understand the noise in the reconstruction
  - then compare the result of the PCA and the variables found to see if it has a physical explanation

• Moon analysis (Alexandre):
  - optimised some parameters in the peak detection and filtering
  - started measuring atmosphere and Moon flux

• Scanning strategy (Ismail):
  - working on automisation of scanning strategy from Sofia's code output
  - currently a problem with the time of scanning

• Moon scans (Steve):
  - in order to observe the Moon, need to rotate the whole mount but it is a problem without the cable carrier (have to go little by little)
  - the engine has a (hardware, software?) limit on the rotation of the mount, might have to rotate the long way
  - might have to remove the service platform
  - holidays + not full days, hard to say how many days it will take