CALPRODUCT-VS-019: VIS PSF Calibration¶
Parent requirement¶
Not in the CalCD-B
Scheduling¶
There is no required numeric cadence for the PSF calibration fields. Rather, it is determined by the reference survey design (RSD) itself, in particular the major thermal disturbances due to large slew angles. The current best effort approach is to have a PSF calibration field aligned with every wide survey patch. Roughly, a PSF calibration field would be observed once every 1 or 2 months, but with a large scatter.
Time-critical¶
No.
Objective¶
Calibrate / validate the VIS PSF Model, using stars in the same magnitude range (17.5 < VIS < 21) as in the wide survey. The S/N must be 5x that of the wide survey.
Fulfilled by¶
CALBLOCK-F-001: Self Calibration (providing further constraints on a monthly basis)
CALBLOCK-F-008: VIS PSF Calibration and NISP photo nonlinearity
Data volume¶
100*VS = 45200 MB
Processing input¶
Ground Processing Input Data: TBD
Data Description: 100 VIS science exposures
Processing output¶
TBD
Required accuracy, constraints¶
images successfully acquired
Processing tools¶
TBD
Quality control parameters¶
DataModel: https://gitlab.euclid-sgs.uk/
Contact person¶
VIS instrument scientist