| 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_Resolution_Angular | 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 |
| | HA/pixel | HA/pixel is an abbreviation for hour angle per pixel, which is a unit of angular pixel resolution (1 hour of angle = 15 degrees, so that a full circle comprises 24 hours). |
| | arcsec/pixel | arcsec/pixel is an abbreviation for arcsecond per pixel, which is a unit of angular pixel resolution (3600 arcsec = 1 degree). |
| | deg/pixel | deg/pixel is an abbreviation for degree per pixel, which is a unit of angular pixel resolution (1 degree = pi/180 radians, so that a full circle comprises 360 degrees). |
| | mrad/pixel | mrad/pixel is an abbreviation for milliradian per pixel, which is a unit of angular pixel resolution (1000 mrad = one thousand milliradians = 1 radian). |
| | radian/pixel | radian/pixel is an abbreviation for radian per pixel, which is a unit of angular pixel resolution (radian is a SI base unit, such that a full circle comprises 2*pi radians). |