| This table contains most relevant survey constants and their physical units |
| name | type | length | unit | ucd | description |
| name | varchar | 32 | METADATA_NAME | Name of the constant | |
| value | float | 8 | NUMBER | The numerical value in float | |
| unit | varchar | 32 | METADATA_UNIT | Its physical unit | |
| description | varchar | 2000 | METADATA_DESCRIPTION | Short description |