| Description: If present it describes the test pattern in the image. If there is no test pattern then this keyword will not appear in the label. |
| Namespace Id: dart | Steward: sbn | Class Name: LUKE_Instrument_Attributes | 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: true | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | DYNAHORZ | The image contains a dynamic horizontal gradient test pattern. It is dynamic in the sense that the pixel values created by this test pattern vary from image to image. |
| | FLAT | The image contains a uniform gray image. |
| | STATHORZ | The image contains a static horizontal gradient test pattern. |
| | TWOBOX | The image contains a two-box test pattern. |