CALPRODUCT-NP-007: NISP-P PSF Model¶
Parent requirement¶
Not in the CalCD-B
Scheduling¶
Monthly.
Time-critical¶
No.
Objective¶
Calibrate / validate the NISP PSF Model.
The position of brighter NISP sources must be known with an accuracy smaller than 0.1 pixel. This requires a PSF model that is robust against undersampling and e.g. intra-pixel sensitivity variations. In the Self-cal field with its stellar density of about \(2\;{\rm arcmin^{-2}}\), a single NISP detector will see about 200 stars in the range 16-21 AB mag in a single exposure, or 12000 stars after 60 dithers, per filter. Currently, there are no formalized requirements on a NISP PSF model. It is assumed that 12000 stars per detector are sufficient.
Fulfilled by¶
Data volume¶
NISP: 24720 MB = (3*NP+NS)*60
Processing input¶
Ground Processing Input Data: All calibration products to run the standard science pipeline (BPM, darks, flat, nonlinearity etc), small scale flat fields
Data Description: NISP: 240 MACC images (60 spectro, 180 photo MACC images)
Processing output¶
Updated NISP PSF model, for each filter
Required accuracy, constraints¶
Images successfully acquired
Processing tools¶
TBD
Quality control parameters¶
DataModel: https://gitlab.euclid-sgs.uk/
Contact person¶
NISP-P calibration scientist