hips_service_url     = https://alasky.cds.unistra.fr/DSS/DSSColor
hips_service_url_1   = https://alaskybis.cds.unistra.fr/DSS/DSSColor
hips_service_url_2   = https://casda.csiro.au/hips/DSS2/color
hips_service_url_3   = https://irsa.ipac.caltech.edu/data/hips/CDS/DSS2/color
hips_service_url_4   = http://skies.esac.esa.int/DSSColor