NIKA2 Run 6 Offline processing results

This private page is dedicated to results we get from a closer look to the raw data :

Calibrated Kidpar from the beammap 20161010s19 from the previous run

Using the beam map 20161010s19 (Uranus) from the the previous run (same configuration as the one we have now) we get the following KID positions after 2 iterations:

Beam_A1.png Beam_A2.png Beam_A3.png

We use the skydip scan 20161026s115 of this run as it displays really good fits and the ratio tau_2mm/tau_1mm is around 0.65 as expected given the NIKA2 bandwidths. Therefore, the second iteration of the beammap processing takes into account opacity corrections which allows us to compute the KIDs calibration coefficients. The second step of the calibration coefficient computation consist in using the Kidpar and process several Uranus beammaps to get different measurements of its flux. We can then rescale the KID calibration coefficients so than the mean of the flux measurement distribution matches the expected Uranus fluxes at 1 and 2 mm. We use the beammaps 20161010s19, 20161010s37, 20161026s113, 20161026s114 as those are the only one we have on Uranus for this configuration. We get the following results:

Rescale_A1.png Rescale_A2.png Rescale_A3.png

Ones the calibration coefficients are rescaled we can test this new Kidpar (kidpar_20161010s19_v2_FR_rescale_calib.fits) other sources to see if the measured fluxes matches the ones we expect. Using 2 beammaps on 3C84 (20161027s31, 20161027s32) and this new Kidpar, we get the following results:

3C84_s31.png 3C84_s32.png

The measured fluxes at 1mm are consistent we the ones we expect (~ 10 Jy).