SkyMapper DR4 Image Access By downloading SkyMapper data you agree to observe the policies published at http://skymapper.anu.edu.au/policies/ Image name MIME-type of the requested image SkyMapper filter (u,v,g,r,i,z) Image download URL Download PNG preview Download FITS Download FITS bitmask ICRS Right Ascension of the image centre ICRS Declination of the image centre On-sky exposure time Modified Julian Date of exposure start Angular size of image Image size in pixels WCS pixel scale of each image axis Unique image identifier [image_id]-[ccd] Type of image Instrument name Number of image axes Coordinate system reference frame Tangent plane projection with a polynomial distortion function described by coefficients provided in a set of PVi_j keywords. The first image axis represents Right Ascension and the second represents Declination

SkyMapper_i_20180920143852-24_1.919+11.552_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180920143852-24&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180920143852-24&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180920143852-24&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180920143852-24&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91928	11.55163	100.0	58381.61035	108 108	219 219	0.4964 0.4962	20180920143852-24	main
SkyMapper_i_20200730180853-28_1.919+11.552_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200730180853-28&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200730180853-28&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200730180853-28&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200730180853-28&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91920	11.55162	10.0	59060.75618	108 108	219 219	0.4970 0.4964	20200730180853-28	short
SkyMapper_u_20200826161047-11_1.919+11.552_108x108	image/png	u	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161047-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161047-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161047-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161047-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91921	11.55161	40.0	59087.67417	108 108	219 219	0.4966 0.4972	20200826161047-11	short
SkyMapper_g_20200826161226-11_1.919+11.552_108x108	image/png	g	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161226-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161226-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161226-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161226-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91925	11.55160	5.0	59087.67532	108 108	219 219	0.4967 0.4974	20200826161226-11	short
SkyMapper_i_20200826161316-11_1.919+11.552_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161316-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161316-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161316-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161316-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91926	11.55162	10.0	59087.67589	108 108	219 219	0.4968 0.4974	20200826161316-11	short
SkyMapper_z_20200826161348-11_1.919+11.552_108x108	image/png	z	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161348-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161348-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161348-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200826161348-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91928	11.55161	20.0	59087.67627	108 108	219 219	0.4967 0.4973	20200826161348-11	short
SkyMapper_i_20200831155708-11_1.919+11.552_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200831155708-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200831155708-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200831155708-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200831155708-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91924	11.55155	10.0	59092.66470	108 108	219 219	0.4968 0.4974	20200831155708-11	short
SkyMapper_z_20200831155737-11_1.919+11.552_108x108	image/png	z	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200831155737-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200831155737-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200831155737-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200831155737-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91920	11.55156	20.0	59092.66505	108 108	219 219	0.4967 0.4973	20200831155737-11	short
SkyMapper_g_20200927140848-11_1.919+11.552_108x108	image/png	g	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140848-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140848-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140848-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140848-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91923	11.55164	5.0	59119.58947	108 108	219 219	0.4968 0.4973	20200927140848-11	short
SkyMapper_r_20200927140913-11_1.919+11.552_108x108	image/png	r	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140913-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140913-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140913-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140913-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91927	11.55163	5.0	59119.58976	108 108	219 219	0.4967 0.4973	20200927140913-11	short
SkyMapper_i_20200927140944-11_1.919+11.552_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140944-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140944-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140944-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927140944-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91917	11.55156	10.0	59119.59013	108 108	219 219	0.4968 0.4974	20200927140944-11	short
SkyMapper_z_20200927141015-11_1.919+11.552_108x108	image/png	z	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927141015-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927141015-11&format=png&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927141015-11&format=fits&pos=1.91920125436,11.5516265225&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927141015-11&format=mask&pos=1.91920125436,11.5516265225&size=0.03,0.03	1.91928	11.55167	20.0	59119.59047	108 108	219 219	0.4967 0.4973	20200927141015-11	short