| Description: An acronym for the HST instrument. This is the value of FITS keyword INSTRUME. |
| Namespace Id: hst | Steward: rings | Class Name: Instrument_Parameters | 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: SHORT_STRING |
| Status: Active | Nillable: false | Pattern: None |
| Permissible Value(s) | Value | Value Meaning |
| | ACS | Advanced Camera for Surveys |
| | COS | Cosmic Origins Spectrograph |
| | FGS | Fine Guidance Sensors |
| | FOC | Faint Object Camera |
| | FOS | Faint Object Spectrograph |
| | GHRS | Goddard High Resolution Spectrograph |
| | HSP | High Speed Photometer |
| | NICMOS | Near Infrared Camera and Multi-Object Spectrometer |
| | STIS | Space Telescope Imaging Spectrograph |
| | WFC3 | Wide Field Camera 3 |
| | WFPC | Wide Field/Planetary Camera |
| | WFPC2 | Wide Field/Planetary Camera 2 |