... ZTF1
https://www.ztf.caltech.edu
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... redshift2
https://ned.ipac.caltech.edu/
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ZTF3
https://lasair-ztf.lsst.ac.uk/object/ZTF20abevbxv/
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... Gaia4
http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia20djl/
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IRAF5
IRAF is distributed by the National Optical
Astronomy Observatory, which is operated by AURA under cooperative
agreement with the National Science Foundation
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SDSS6
skyserver.sdss.org/dr16/en/tools/search/radial.aspx
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... PanSTARRS7
https://catalogs.mast.stsci.edu/panstarrs/
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