CALPRODUCT-NP-003: NISP-P Large-Scale Flat¶
Parent requirement¶
Scheduling¶
Monthly
Time-critical¶
No
Dependencies¶
None
Objective¶
Reconstruct matching broad-band large-scale flats for the YJH filters from the CALBLOCK-F-001: Self Calibration observations.
Fulfilled by¶
Data volume¶
TBD
Processing input¶
Ground Processing Input Data: BPM
Data Description:
Processing method¶
By comparing stellar fluxes from a set of widely dithered images, a large-scale illumination correction is calculated. This calibration removes simultaneously the large-scale non-uniformity present in the NI-CU beam (CALPRODUCT-NI-010: NISP LED Flats) as well as any vignetting effects from the telescope and instrument optics (NI-CU illuminates the focal plane array directly, without passing through any optics).
Processing output¶
Large-scale flats for the YJH filters. Trend analysis
Required accuracy, constraints¶
TBD
Processing tools¶
L1 small scale flat pipeline, trending statistics, offline analysis for trapping/de-trapping, persistence
Quality control parameters¶
DataModel: https://gitlab.euclid-sgs.uk/
Contact person¶
NISP-P calibration scientist