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| Term | Explanation |
|---|---|
| Detection | Catalog data for a single source from a single exposure for a single detected astrophysical source. |
| Object | An astrophysical source with Catalog data for one or more associated detections. |
| Sky cell | One tile in the PS1 tessellation of the sky. |
| Stack image | Image constructed from by combining all useful warps overlapping warp images that overlap a single sky cell. |
| Stack Detectiondetection | Catalog data for a single source from a stack image. |
| Stack object | Catalog data for one or more associated stack detections. |
| Warp image | Image constructed by resampling a single exposure onto a canonical sky cell projection. |
