Tag Archives: FITS

SkyView support for ZPN projection

As part of integrating UKIDSS data into SkyView, we have added support for the Zenithal Polynomial, ZPN, projection. In this projection the angular distance between a point on the sky and the reference position is transformed to a distance from … Continue reading

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FITS Header Issue

In some cases SkyView has been including newline characters in FITS headers. This is a violation of the FITS standards and apparently confuses some tools about subsequent header records. We’ve put in a fix for the problem this morning (10/25) … Continue reading

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Duplicate EPOCHs in GALEX data

If you’ve tried the new GALEX survey from the command line, you may have noticed some messages Warning: Multiple occurrences of key: EPOCH popping up. Many of the GALEX FITS files have two EPOCH keywords in their headers. Fortunately they … Continue reading

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New ImageFinders and Faster FITS

The GALEX release was accompanied by a few other changes. The one that some users may notice is that for surveys where the data is gzip compressed, SkyView should be a little faster. SkyView was sometimes reading the entire image … Continue reading

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