Sequence of P05, P03 nodding and P05 observations on HR7341 and HR7310
with P2 (20, 25) in 180" aperture. Sequence of P05, P03 nodding and P05 
observations on HR6847 and HD172323 with P1 (3.6, 4.85) in 180" aperture. 
No straylight and no dark measurements.