NIKA3 Offline Processing Results

2011 October run

=Private results for the collaboration only=

Public results

List of offline processing tasks

FXD, 24 Oct 2011 - Photometric quality

Here are the maps obtained on one OTF scan with IRC 10216. Sky noise decorrelation is used.

The flux per kid is shown here using the calibration on Mars Scan #55. This is an indication that the new camera with its dIdQ modulation scheme provides a big photometric improvement with respect to 2010 campaign. The average flux is compatible with the range of fluxes measured on this (variable) source.

RZ, 25 Nov 2011 - Pointing & focus effects

Source positions in eq offsets. Positions of planets are not shown. In red are shown positions of sources used for pointing model, in black after the installation of the pointing model. The pointing run was apparently performed with Nasmyth offsets of EMIR ! The pointing offsets after the installation of the pointing model are still very large, even 3-5 times larger than the normal values.

As above in hor system; positions of planets are also shown.

Effekt of defocusing: the source moves by a couple of arcsec in azim & elev. Note the larger scatter of the elev-positions.

Both, pointings and foci were done by mapping. However, to correctly process maps the correct beam parameters, i.e. the pixel positions and their flat field are mandatory. The effective FoV geometry, the flat field and their errors will come next.

SL, 07 Nov 2011 - Expected field distortion

grid distortion

FXD, 21 Nov 2011 - Technical note on kid frequencies

• FXD, 24 Nov 2011 updated v2 (Fits format exchange)

Kid frequencies, fits format

AM,MC 24 Nov 2011 Spectral transmissions