| Description: The unit_id attribute provides a character or character string which serves as an abbreviation for, or symbol representing, a unit of measure. |
| Namespace Id: pds | Steward: pds | Class Name: Units_of_Pixel_Scale_Linear | Type: ASCII_Short_String_Collapsed |
| 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: None |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | pixel/km | pixel/km is an abbreviation for pixel per kilometer, which is a unit of linear pixel scale (1 km = 10**3 m = one thousand meters). |
| | pixel/m | pixel/m is an abbreviation for pixel per meter, which is a unit of linear pixel scale (meter is an SI base unit). |
| | pixel/mm | pixel/mm is an abbreviation for pixel per millimeter, which is a unit of linear pixel scale (10**3 mm = one thousand millimeters = 1 meter). |