The starting point for the PS1 data archive is at The Pan-STARRS1 data archive home page.

Raw Images

After an exposure is taken at the telescope, the raw image files of the 60 OTA CCDs (see PS1: GPC1 camera) are corrected for persistence issues and then handed over to the PS1: The IPP pipeline for further analysis. The STScI PS1 Archive does not provide these images.

Camera Images

The camera images are created by applying PS1: Exposure detrending to the raw images (i.e., masking, bias subtraction, flat fielding), and determining the astrometric and photometric calibration. The STScI PS1 Archive does not provide these images.

Image

Artifacts and

Anomalies

PS1: Warp images description (available in DR2)

Stack Images PS1: Stack images description (DR1)

Difference Images (available in DR3)

Difference images are created by subtracting a warp from another image, in general the stack, after matching the PSFs and normalization using a spatially varying kernel. All static objects such as galaxies and constant stars are subtracted out, and only the excess flux from the different epochs is left. Even though the differences images are not stored on disk, they can be created, and it is planned to make them accessible through the STScI PS1 interface in a later release.

Mask

Image

Weight

Image