| Description: The unit_id attribute provides a character or character string that serves as an abbreviation for, or symbol representing, a unit of measure. |
| Namespace Id: pds | Steward: pds | Class Name: Units_of_Length | Type: UTF8_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: ID | Conceptual Domain: Short_String |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | AU | The abbreviated unit for Units_of_Length is AU (astronomical unit) |
| | Angstrom | The abbreviated unit for Units_of_Length is Angstrom |
| | cm | The abbreviated unit for Units_of_Length is cm |
| | km | The abbreviated unit for Units_of_Length is km |
| | m | The abbreviated unit for Units_of_Length is m |
| | micrometer | The abbreviated unit for Units_of_Length is micrometer (10-6 m) |
| | mm | The abbreviated unit for Units_of_Length is mm (10-3 m) |
| | nm | The abbreviated unit for Units_of_Length is nm (10-9 m) |