Weight images are variance maps. For single epoch PS1 Warp images, these variance contains the readnoise, Poisson noise, and other noise sources. For PS1 Stack images, the noise is propagated from the individual input warps. These weight images can be used for estimates of the uncertainties in the photometry. We note that the deprojection of the chip images into the warps correlates the pixels, introducing covariance. Therefore the derived uncertainties might underestimate the true noise.

Use Heading 1 for main sections, 2 for the next level down, etc. 

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

The following information is taken from Waters et al., which should be cited appropriately.

Put one or more images or figures at the top of this column. Novices may simply "Insert" an "Image" here. Experts should create first go to the "Media Repository" page and "Create" a new "PS1 image information" page for the new image. The image information page provide a mechanism for capturing metadata and including alternate versions of the figure.

Include an infobox below the picture. Summarize key facts in the infobox. The infobox helps users quickly assess the content of the article.

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