| Description: Name for one of the twelve photodiode in a VL camera. |
| Namespace Id: vikinglander | Steward: geo | Class Name: Image_Parameters | Type: ASCII_Short_String_Preserved |
| Minimum Value: None | Maximum Value: None | Minimum Characters: 1 | Maximum Characters: 255 |
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: SHORT_STRING |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | bb1 | One of four broadband high-resolution diodes. BB1 had the shortest in focus distance. It was used for imaging close to the lander. |
| | bb2 | One of four broadband high-resolution diodes. BB2 had an intermediate in focus distance. |
| | bb3 | One of four broadband high-resolution diodes. BB3 had an intermediate in focus distance. |
| | bb4 | One of four broadband high-resolution diodes. BB4 had the longest in focus distance. It was used for imaging objects further from the lander. |
| | blue | A low-resolution diode with a passband centered at blue wavelengths. |
| | green | A low-resolution diode with a passband centered at green wavelengths. |
| | ir1 | One of three low-resolution diodes with a passband centered at Infrared wavelengths. |
| | ir2 | One of three low-resolution diodes with a passband centered at Infrared wavelengths. |
| | ir3 | One of three low-resolution diodes with a passband centered at Infrared wavelengths. |
| | red | A low-resolution diode with a passband centered at red wavelengths. |
| | sun | A broadband high-resolution diode with a filter designed for imaging the Sun without saturating the DN range. |
| | survey | A broadband low-resolution diode. The Survey diode was used to take images that covered a large area at low resolution. |
| | undefined | This value indicates a calibration sequence was collected using all the diodes. |