| Attribute name | Attribute type | Docstring | Unit |
|---|
| ESO_QC_EXPALIGN_NDETi | int | Number of detected sources for input image i | |
| ESO_QC_EXPALIGN_NMATCHi | int | Median number of matches of input image i with other images | |
| object_id | oidtype | The object identifier
The object identifier is an attribute shared by all persistent
instances. It is the prime key, by which object identity is established | |
| parameter_i | int | input image, id i, regexp [0-9]+ | |
