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_20180820192054-16_40.692+7.613_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180820192054-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180820192054-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180820192054-16&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180820192054-16&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69225	7.61326	100.0	58350.80619	108 108	219 219	0.4955 0.4959	20180820192054-16	main
SkyMapper_i_20180820192254-11_40.692+7.613_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180820192254-11&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180820192254-11&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180820192254-11&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180820192254-11&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69223	7.61332	100.0	58350.80759	108 108	219 219	0.4968 0.4974	20180820192254-11	main
SkyMapper_u_20180827184230-16_40.692+7.613_108x108	image/png	u	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184230-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184230-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184230-16&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184230-16&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69234	7.61327	40.0	58357.77953	108 108	219 219	0.4955 0.4958	20180827184230-16	short
SkyMapper_v_20180827184330-16_40.692+7.613_108x108	image/png	v	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184330-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184330-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184330-16&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184330-16&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69235	7.61326	20.0	58357.78022	108 108	219 219	0.4954 0.4958	20180827184330-16	short
SkyMapper_g_20180827184410-16_40.692+7.613_108x108	image/png	g	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184410-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184410-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184410-16&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184410-16&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69232	7.61332	5.0	58357.78069	108 108	219 219	0.4955 0.4958	20180827184410-16	short
SkyMapper_r_20180827184436-16_40.692+7.613_108x108	image/png	r	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184436-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184436-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184436-16&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184436-16&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69233	7.61322	5.0	58357.78098	108 108	219 219	0.4955 0.4958	20180827184436-16	short
SkyMapper_i_20180827184502-16_40.692+7.613_108x108	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184502-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184502-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184502-16&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184502-16&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69224	7.61330	10.0	58357.78128	108 108	219 219	0.4955 0.4959	20180827184502-16	short
SkyMapper_z_20180827184532-16_40.692+7.613_108x108	image/png	z	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184532-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184532-16&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184532-16&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20180827184532-16&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69227	7.61322	20.0	58357.78163	108 108	219 219	0.4954 0.4958	20180827184532-16	short
SkyMapper_v_20200927164547-32_40.692+7.616_108x91	image/png	v	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164547-32&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164547-32&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164547-32&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164547-32&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69223	7.61591	20.0	59119.69847	108 91	219 184	0.4972 0.4964	20200927164547-32	short
SkyMapper_g_20200927164627-32_40.692+7.616_108x91	image/png	g	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164627-32&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164627-32&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164627-32&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164627-32&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69223	7.61580	5.0	59119.69895	108 91	219 184	0.4972 0.4965	20200927164627-32	short
SkyMapper_i_20200927164718-32_40.692+7.616_108x90	image/png	i	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164718-32&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164718-32&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164718-32&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164718-32&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69223	7.61593	10.0	59119.69953	108 90	219 183	0.4973 0.4965	20200927164718-32	short
SkyMapper_z_20200927164748-32_40.692+7.616_108x89	image/png	z	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164748-32&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164748-32&format=png&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164748-32&format=fits&pos=40.692224225,7.613345125&size=0.03,0.03	https://api.skymapper.nci.org.au/public/siap/dr4/get_image?image=20200927164748-32&format=mask&pos=40.692224225,7.613345125&size=0.03,0.03	40.69219	7.61602	20.0	59119.69988	108 89	219 181	0.4972 0.4964	20200927164748-32	short