| name | type | description |
| fFieldQuality | F | Returns bitmask of named field quality (e.g. ACCEPTABLE, BAD, GOOD, HOLE, MISSING) |
| fFieldQualityN | F | Returns description of quality value (e.g. ACCEPTABLE, BAD, GOOD, HOLE, MISSING) |
| name | value | description |
| BAD | 1 | Not acceptable for the survey |
| ACCEPTABLE | 2 | Barely acceptable for the survey |
| GOOD | 3 | Fully acceptable -- no desire for better data |
| MISSING | 4 | No objects in the field, because data is missing. We accept the field into the survey as a HOLE |
| HOLE | 5 | Data in this field is not acceptable, but we will put the field into the survey as a HOLE, meaning none of the objects in the field are part of the survey |