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The full API documentation, with all possible options and combinations for any instrument, can be found in engine_input_api.rst
Examples
The following calculation defines a JWST NIRCam observation in SW Imaging mode using the full subarray and rapid readout pattern and f070w filter, for a flat-spectrum (in fnu) point source normalized to 0.001 mJy, intended to be observed with a 0.2" aperture. Note that it specifies a background precomputed for the JWST minzodi benchmark position; actual user-configured backgrounds are available in the JWST Webapp (and can be downloaded from there)
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(click here to download as a JSON file: imaging_f087_c2a_img_hlwas_full.jeng
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{ "background": "minzodi", "background_level": "benchmark", "calculation": { "effects": { "saturation": null }, "noise": { "crs": null, "dark": null, "excess": null, "ffnoise": null, "readnoise": null, "scatter": null } }, "configuration": { "detector": { "ma_table_name": "c2a_img_hlwas", "nexp": 1, "nresultants": -1, "subarray": "full" }, "instrument": { "aperture": "imaging", "disperser": null, "filter": "f087", "instrument": "wfi", "mode": "imaging" } }, "scene": [ { "position": { "orientation": 0.0, "x_offset": 0.0, "y_offset": 0.0 }, "shape": { "geometry": "point" }, "spectrum": { "extinction": { "bandpass": "j", "law": "mw_rv_31", "unit": "mag", "value": 0.0 }, "extinction_first": true, "lines": [], "name": "generic source", "normalization": { "norm_flux": 0.001, "norm_fluxunit": "mjy", "norm_wave": 2.0, "norm_waveunit": "microns", "type": "at_lambda" }, "redshift": 0.0, "sed": { "sed_type": "flat", "unit": "fnu", "z": 0.0 } } } ], "strategy": { "aperture_size": 0.2, "background_subtraction": true, "display_string": "Imaging Aperture Photometry", "is_aperture_ee": false, "method": "imagingapphot", "sky_annulus": [ 0.4, 0.6 ], "target_source": "1", "target_type": "coords", "target_xy": [ 0.0, 0.0 ], "units": "arcsec" } } |
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