| Description: A keyword appended to the VICAR label of an output image, indicating how far the image has progressed through the CISSCAL calibration pipeline, allowing the software to resume processing from the appropriate step if calibration is restarted. |
| Namespace Id: cassini | Steward: atm | Class Name: ISS_Calibrated_Attributes | Type: ASCII_NonNegative_Integer |
| Minimum Value: 0 | Maximum Value: 18446744073709551615 | Minimum Characters: None | Maximum Characters: None |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: INTEGER |
| Status: Active | Nillable: false | Pattern: [0-9]+ |
| Permissible Value(s) | Value | Value Meaning |
| | 1 | LUT conversion: Converts 8-bit table-encoded pixel values to 12-bit DN using a reverse lookup table. |
| | 10 | Correction factors: Applies filter-specific corrections based on observed stellar fluxes. Considered fully calibrated. |
| | 11 | Geometric correction: Corrects for optical distortion in the camera system. |
| | 2 | Bitweight correction: Corrects uneven bit-weighting in digitized signal via the appropriate look-up table. |
| | 3 | Subtract bias: Removes CCD baseline level using overclocked pixels or BIAS STRIP MEAN. |
| | 4 | Remove 2-Hz noise: Eliminates horizontal banding noise from readout electronics using either the image background or overclocked pixels. |
| | 5 | Subtract dark: Removes dark current using model or external dark frame. |
| | 6 | A-B pixel pairs: Removes pixel artifacts from anti-blooming mode. |
| | 7 | Linearize: Corrects for non-linearity in CCD response. |
| | 8 | Flatfield: Corrects pixel sensitivity using flatfield and dustring maps. |
| | 9 | Convert DN to flux: Converts DN to flux using gain, exposure time, area, and efficiency. |