| Contains details of default difference image products curated in the archive. |
| This table contains details of all the default difference image products that are curated within the archive as part of the requirements for a particular survey. For example, the UKIDSS GPS requires general H2-K difference imaging to be done in the appropriate survey regions. The difference imaging curation task implemented within the archive uses the information in this table to produce the required products for a given programme when invoked as part of archive operations. Required constraints:
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| Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
|---|---|---|---|---|---|---|
| programmeID | int | 4 | the unique programme ID | meta.id | ||
| productID | int | 4 | A unique identifier assigned to each required difference image product entry | ?? | ||
| filter1 | tinyint | 1 | UID of OMEGACAM narrow band (primary) filter | meta.code;instr.filter | ||
| filter2 | tinyint | 1 | UID of OMEGACAM broad band (reference) filter to be subtracted | meta.code;instr.filter | ||
| wcs | varchar | 1 | CASU difference image tool option to specify use of implicit WCS in the input files (y/n; recommended value=y) | ?? | ||
| method | varchar | 64 | CASU difference image tool option string specifying the method to employ (recommended value=adaptive/back/zerosky) | ?? | ||
| Total length | 75 |